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La radiografía de tórax sigue siendo fundamental para la evaluación de patologías torácicas en lactantes. Antes de iniciar su interpretación, muchos autores sugieren revisar la técnica radiológica, ya que a esta edad se presentan varias particularidades técnicas que deben tenerse en cuenta para evitar errores interpretativos y no confundir hallazgos técnicos con patologías. Entre estas particularidades técnicas se deben evaluar: el centraje transversal o rotación, el centraje longitudinal o posición lordótica, el grado de inspiración, la posición de la vía aérea superior, la penetración o exposición de la radiografía, tipos de proyecciones y el movimiento. El objetivo de esta revisión es comentar y ejemplificar las peculiaridades técnicas que presenta la radiografía de tórax en lactantes y que pueden llevar a interpretaciones erróneas.
The chest X-ray remains essential for evaluating thoracic pathology in infants. Before beginning its interpretation, many authors recommend assessing the radiographic technique, as several technical peculiarities must be considered at this age to avoid interpretive errors and prevent mistaking technical artifacts for pathology. The technical aspects to be evaluated include transverse centering or rotation, longitudinal centering or lordotic position, degree of inspiration, upper airway positioning, radiograph penetration or exposure, projection types, and movement. The objective of this review is to discuss and illustrate the technical peculiarities of infant chest X-rays that can lead to erroneous interpretations.
Subject(s)
Humans , Infant , Thoracic Diseases/diagnostic imaging , Radiography, Thoracic , Diagnostic Errors , Rotation , Patient PositioningABSTRACT
La neurofibromatose de type 1 ou maladie de Von Recklinghausen, maladie héréditaire la plus fréquente parmi les phacomatoses, caractérisée par la présence d'au moins deux critères diagnostiques, dont le neurofibrome. Nous rapportons le cas d'un patient de 37 ans, contact direct d'un patient tuberculeux, atteint de neurofibromatose dont la radiographie pulmonaire mimait des images en « lâcher de ballon ¼ coexistant avec une tuberculose pulmonaire. Nous insistons à travers ce cas et à la lumière d'une revue de la littérature sur l'importance d'avoir un esprit critique et un raisonnement diagnostic médical devant toute image ne correspondant pas à l'indication clinique.
Neurofibromatosis type 1 or Von Recklinghausen disease, most common hereditary disease of phacomatosis, which is characterized by the presence of at least two diagnostic criteria, including neurofibroma. We report the case of a 37-year-old patient, direct contact of a tuberculosis patient, suffering from neurofibromatosis whose chest X-ray mimicked images of "balloon release" coexisting with pulmonary TBC. We insist through this observation and in the light of a literature review on the importance of having a critical mind and medical diagnostic reasoning in front of any image that does not match the clinical indication.
Subject(s)
Humans , Female , AdultABSTRACT
Introducción: La COVID-19 ha impuesto un reto para los servicios de salud desde el punto de vista económico y social. El papel de la radiografía de tórax ha sido fundamental para el tratamiento de estos pacientes. Objetivo: Caracterizar los hallazgos radiológicos más frecuentes en pacientes confirmados a la COVID-19. Método: Se realizó un estudio descriptivo en 859 pacientes ingresados, confirmados a la COVID-19, que presentaron lesiones radiológicas durante su estadía hospitalaria; se realizaron radiografías de tórax al ingreso y evolutivas, según el protocolo de atención vigente en el momento del estudio. Las variables utilizadas fueron: edad, sexo biológico, gravedad del cuadro radiológico, patrón radiológico y localización de las lesiones. Resultados: La mayor frecuencia fue de adultos (65,7 por ciento), masculinos (60,4por ciento ); predominaron las lesiones de moderada gravedad (51,6 por ciento); solo el 17,4 por ciento evolucionó a formas radiológicas graves. El 64,8 por ciento mostró un patrón radiológico mixto; con mayor frecuencia en la localización bilateral (89,9 por ciento ), la periférica/subpleural (66,7 por ciento ) y en campos inferiores (90,9 por ciento ). Conclusiones: Los hallazgos radiológicos se caracterizan por presentar lesiones de gravedad moderada, con patrón mixto, en las localizaciones bilateral, periférica/subpleural y en campos inferiores(AU)
Introduction: COVID-19 has imposed a challenge for health services, from an economic and social point of view. The role of chest radiography has been fundamental in the management of these patients. Objective: To characterize the most frequent radiological findings in patients confirmed to COVID-19. Methods: A descriptive study was carried out in 859 admitted patients, confirmed to COVID-19, who presented radiological lesions during their hospital stay; chest X-rays were taken on admission and during evolution, according to the protocol of care in force at the time of the study. The variables used were: age, biological sex, severity of the radiological picture, radiological pattern and location of the lesions. Results: Adults (65.7 percent), males (60.4 percent), were more frequent; moderate severity lesions predominated (51.6 percent); only 17.4 percent evolved to severe radiological forms. 64.8 percent showed mixed radiological pattern; with higher frequency in bilateral (89.9 percent), peripheral/subpleural (66.7 percent) and in lower fields (90.9 percent ). Conclusions: Radiological findings are characterized by presenting lesions of moderate severity, with mixed pattern, in bilateral, peripheral/subpleural and in inferior fields locations(AU)
Subject(s)
Humans , Male , Female , Child , Adolescent , Adult , Thoracic Injuries/diagnostic imaging , COVID-19/diagnosis , Epidemiology, Descriptive , HospitalizationABSTRACT
Background: Respiratory distress (RD) is a leading cause of morbidity and mortality among neonates in neonatal intensive care units (NICUs). Traditionally, clinical criteria combined with chest X-ray have been considered the gold standard for diagnosing respiratory distress. This study aims to assess the efficiency of lung ultrasound in diagnosing respiratory distress, with a focus on preventing neonates from unnecessary radiation exposure.Methods: A multicentric prospective study was performed where neonates with gestational age 28-40 weeks were included based on presence of clinical signs of respiratory distress. Neonates with congenital anomalies or those who received surfactant therapy were excluded. Within 6 hrs of birth, these neonates underwent X ray chest and ultrasound. Final interpretation of chest x-ray was done by the blinded radiologist. A trained neonatologist used transthoracic view in ultrasound for the initial interpretation.Results: A total of 80 neonates were enrolled in the study, among whom 49 were diagnosed with respiratory distress syndrome, 22 with transient tachypnoea of the newborn, 4 with pneumonia, and 5 classified as normal. Lung ultrasound exhibited a sensitivity of 95.9% and a specificity of 90.3% for the diagnosis of respiratory distress, with a positive predictive value of 94% and a negative predictive value of 93.3%.Conclusions: Lung ultrasound proves to be a highly efficient diagnostic tool for respiratory distress in neonates, offering the added advantage of avoiding harmful radiation exposure associated with chest X-rays. Early detection of respiratory distress can facilitate timely management and significantly improve neonatal outcomes. Further adoption and validation of point of care lung ultrasound in clinical practice hold the potential to enhance neonatal care.
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Objective:To analyze the accuracy of lung ultrasound and chest X-ray in the diagnosis of neonatal pulmonary disease.Methods:We prospectively collected newborns that needed chest X-ray examination to diagnose pulmonary disease from twelve neonatal intensive care units across the country between June 2019 and April 2020.Each newborn was examined by lung ultrasound within two hours after chest X-ray examination.All chest X-ray and lung ultrasound images were independently read by a radiologist and a sonographer.When there was a disagreement, a panel of two experienced physicians made a final diagnosis based on the clinical history, chest X-ray and lung ultrasound images.Results:A total of 1 100 newborns were enrolled in our study.The diagnostic agreement between chest X-ray and lung ultrasound(Cohen′s kappa coefficient=0.347) was fair.Lung ultrasound(area under the curve=0.778; 95% CI 0.753-0.803) performed significantly better than chest X-ray(area under the curve=0.513; 95% CI 0.483-0.543) in the diagnosis of transient tachypnea of the newborn( P<0.001). The accuracy of lung ultrasound in diagnosing neonatal respiratory distress syndrome, meconium aspiration syndrome, pneumonia and neonatal pulmonary atelectasis was similar to that of chest X-ray. Conclusion:Lung ultrasound, as a low-cost, simple and radiation-free auxiliary examination method, has a diagnostic accuracy close to or even better than that of chest X-ray, which may replace chest X-ray in the diagnosis of some neonatal lung diseases.It should be noted that both chest X-ray and lung ultrasound can only be used as auxiliary means for the diagnosis of lung diseases, and it is necessary to combine imaging with the clinical history and presentation.
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@#COVID-19 is a highly contagious viral illness with a wide spectrum of clinical manifestations ranging from asymptomatic or mild cold like symptoms to a devastating and often fatal respiratory illness. The elderly and those with underlying morbidity are the groups most often, but certainly not exclusively, associated with death from respiratory pathology. COVID-19 respiratory illness usually manifests clinically as pneumonia with predominant imaging findings of an atypical or organized pneumonia. Chest radiography (CXR) helps to assess the progress of the disease. The BRIXIA score based on radiological appearance may be used to determine the severity and clinical outcome of a patient with COVID-19. The aim of this study was to assess the relationship between the BRIXIA score and the clinical outcome of positive COVID-19 patients at Port Moresby General Hospital (PMGH) in Papua New Guinea (PNG). In this descriptive retrospective study conducted at the Radiology Department of the PMGH the records of 129 Polymerise Chain Reaction (PCR) confirmed patients admitted to PMGH between September and December 2021 were examined. The patients were grouped into mild, moderate or severe categories depending on clinical features at the time of diagnosis. There were 89 (69%) males and 40 (31%) females. The mean (SD) age was 52 (12) years, and the median (IQR) was 53 (44-60). Their admission CXRs were given a Brixia score. Mean (SD) Brixia scores for mild (n=24), moderate (n=67) and severe (n=38) were 4.5 (2.5), 8.9 (2.7) and 12.5 (3.5) respectively. The Brixia score was significantly related to the clinical severity, F 55.49, p <0.001. Twenty seven (77%) of the 35 patients who died had comorbidities of whom 21 (78%) were in the clinically severe group. A Brixia score of 9 or more was closely associated with death, p = 0.001, Odds Ratio with 95% Confidence interval (0R) of 3.9 (1.7-9.6). The Brixia CXR severity score is a useful tool in assessing clinical severity and prognosis in patients with COVID 19.
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Precise segmentation of lung field is a crucial step in chest radiographic computer-aided diagnosis system. With the development of deep learning, fully convolutional network based models for lung field segmentation have achieved great effect but are poor at accurate identification of the boundary and preserving lung field consistency. To solve this problem, this paper proposed a lung segmentation algorithm based on non-local attention and multi-task learning. Firstly, an encoder-decoder convolutional network based on residual connection was used to extract multi-scale context and predict the boundary of lung. Secondly, a non-local attention mechanism to capture the long-range dependencies between pixels in the boundary regions and global context was proposed to enrich feature of inconsistent region. Thirdly, a multi-task learning to predict lung field based on the enriched feature was conducted. Finally, experiments to evaluate this algorithm were performed on JSRT and Montgomery dataset. The maximum improvement of Dice coefficient and accuracy were 1.99% and 2.27%, respectively, comparing with other representative algorithms. Results show that by enhancing the attention of boundary, this algorithm can improve the accuracy and reduce false segmentation.
Subject(s)
X-Rays , Algorithms , Diagnosis, Computer-Assisted , Thorax/diagnostic imaging , Lung/diagnostic imaging , Image Processing, Computer-AssistedABSTRACT
Introduction: Plain radiography is the first line of radiological examination used for the evaluation of paediatric chest, and also a rapid imaging technique that allows lung abnormality to be identified. X-ray is used to diagnose conditions of the thoracic cavity, including airways, ribs, lungs, heart, and diaphragm. Chest x-ray has a high sensitivity for pulmonary tuberculosis and thus is a valuable tool to identify a differential diagnosis for a patient. Methodology: Two hundred and eleven paediatrics chest x-ray reports were studied between February 2017 to September 2018. Data were collected retrospectively from the hospital archives using a data capture sheet. Results: Two hundred and eleven radiographs were assessed and the age of patients whose radiographs participated in the study ranged from 0-15 years. Also, a greater number of male patients 133(63.03%) participated in the study than female patients 78(36.97%). Among all the radiographs used in this study, the most common age group for this study ranged from 0-3 years. Results from the study also revealed that bronchopneumonia was the most common finding totaling 105(49.76%) followed by radiographs which are normal findings 77(36.49), pulmonary tuberculosis, 19(9.00%), congestive heart failure 4(1.90%), pleural effusion 3(1.42%), enlarged adenoid 2(0.95%) and dextrocardia 1(0.47%). Conclusion: This study report bronchopneumonia was the most common paediatrics radiographic finding in a chest x-ray. Plain radiography is an effective tool to examine various respiratory and cardiac pathologies and is the first line of investigation for chest pathologies.
Subject(s)
Outpatients , Mass Chest X-Ray , Tuberculosis, Extrapulmonary , Bronchopneumonia , Integrative PediatricsABSTRACT
Introduction: The severity of COVID-19 is classified based on clinical, laboratory, and radiology characteristics. Although chest X-ray (CXR) is not sensitive in early stage disease, it can be useful in assessing the rapid progression of lung abnormalities in COVID-19. While CXR findings correlate with the severity of the disease, computed tomography (CT) scans of the chest are widely and repeatedly done. As it exposes the patient to a large dose of radiation and risks the spread of infection to other patients, it is worthwhile to explore the utility of CXR to overcome the above problem, especially in resource-poor settings. Materials and Methods: Inpatients with reverse transcriptase–polymerase chain reaction (RT-PCR)-positive COVID-19 irrespective of severity, admitted in the COVID wards from June to September 2020, were included in a retrospective study. CXR done at admission was scored for radiological severity of COVID-19 by an independent radiologist, unaware of the clinical/laboratory parameters of patients. It was then co-related with clinical severity and standard biomarkers at admission. Results: We studied 400 patients, the mean age (SD) was 53.69 (15.43) years, 268 (67%) were males, the majority of them were symptomatic (95%), 192 (48%) had severe disease, and 238 (59.5%) patients had co-morbidities. Receiver-operating curve (ROC) for CXR severity score showed a threshold of 3.5 to predict severe COVID, which had a positive predictive value of 71% and a negative predictive value of 73%. Using Pearson’s correlation coefficient, CXR severity scores significantly correlated with the clinical severity and standard biomarkers. Conclusion: With the overwhelming number of COVID-19 patients burdening the healthcare system, monitoring of the severity of the disease can be achieved with regular clinical assessment and laboratory parameters with limited radiation exposure, avoiding repeated CT scans, especially in resource-poor settings.
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Background@#COVID-19 is diagnosed via Real Time Reverse Transcription Polymerase Chain Reaction (RT-PCR), with plain chest CT and chest x-ray as adjuncts. In the Philippines, chest x-ray is used as initial screening in assessing potential COVID-19 cases, with plain chest CT scan not routinely used due to higher cost and decreased availability.@*Objective@#This study determined the validity of chest x-ray and plain chest CT as initial screening tools for admitted COVID-19 patients from March 1 to November 30, 2020, at San Lazaro Hospital, comparing these with RT-PCR testing for COVID-19 as initial basis for considering a patient as a possible case of COVID-19.@*Methods@#This was a cross-sectional study of radiographic literature of admitted COVID-19 patients from March 1 to November 30, 2020, at San Lazaro Hospital, all with confirmatory RT-PCR, chest X-rays, and plain chest CTs. Baseline chest x-rays, with initial plain chest CT results, were compared with RT-PCR results. A tally was made, noting radiographic findings on both Chest X-ray and Plain Chest CT most frequently seen among patients with corresponding positive real time RT-PCR results.@*Results@#Chest X-rays done < 2 days from admission revealed involvement of both lungs, with infiltrates located centrally and peripherally, with major predilection for both lower lobes. Plain chest CT was similar, with ground glass opacities as the most common finding, consolidation second. Chest x-ray had a sensitivity of 88.11%, plain chest CT 94.71%. Sensitivity of combined chest x-ray and plain chest CT was 86.78%. Specificity and predictive value were not computed due to non-inclusion of admitted patients with COVID negative RT-PCR swab.@*Conclusion@#Chest X-ray and plain chest CT are useful modalities with high sensitivity in screening patients with fever, cough, and colds on admission. However, initial chest x-ray and plain chest CT scan results do not translate into a prognosis without context of initial diagnostics and management done during confinement.
Subject(s)
COVID-19 , X-Rays , COVID-19 TestingABSTRACT
@#<p><strong>Background:</strong> Coronavirus disease 2019 (COVID-19) continues to be a pandemic to this time, and chest radiography has been used as a first-line triage tool, due to long turnaround times for real-time reverse transcription polymerase chain reaction (RT-PCR), which remains to be the gold standard in COVID-19 diagnosis. Chest x-ray alone has poor sensitivity to diagnosing COVID-19 and pediatric studies on this are scarce.</p><p><strong>Objectives:</strong> The main objective is to evaluate the usefulness of a routine chest radiograph as an adjunct to diagnosing suspected pediatric COVID-19, along with its sensitivity, specificity, accuracy, and correlation with the most common pediatric signs and symptoms. In line with this, the radiographic characteristics seen in pediatric COVID-19 patients are presented.</p><p><strong>Methods:</strong> A cross-sectional study involving a retrospective chart review of 259 pediatric patients admitted in a tertiary hospital with COVID-19 signs and symptoms, with baseline chest x-ray and SARS-CoV2 RT-PCR tests. Correlation of signs and symptoms with chest x-ray findings to RT-PCR positivity was determined using univariate and multivariate logistic regression analysis.</p><p><strong>Results:</strong> The study was composed of 259 pediatric patients (ages 0-18 years old). Of these, 35 had positive findings with RT-PCR (15%). Sensitivity of a chest radiograph with pneumonia is at 62.9%, while specificity is at 39.3%. Overall accuracy of CXR findings leading to RT-PCR positivity is at 42.5%. Ground glass or hazy opacities was the most common radiographic finding (45.5%), followed by reticular opacities (31.8%). Abnormalities were mostly distributed in the inner lung zone distribution with bilateral lung involvement (90%). Those with difficulty of breathing were more likely to have pneumonia on their CXR, though a finding of pneumonia on CXR did not significantly correlate to a positive RT-PCR.</p><p><strong>Conclusions & Recommendations:</strong> Findings of pneumonia on a pediatric CXR may not necessarily lead to a positive SARS-CoV2 RT-PCR, but correlating this with the patient's clinical course and symptoms may be beneficial in effective triaging of patients. Reassessment by another radiologist may provide additional strength to this study.</p>
Subject(s)
Humans , Male , Female , Child , Mass Screening , Sensitivity and SpecificityABSTRACT
Objective:To analyze and compare the X-ray procedures and radiation dose composition of ophthalmic inpatients, and to explore the changes of the X-ray examination mode in recent years and the effect of optimization in imaging technology on the radiation dose level of the patients.Methods:The simple random sampling method was used to retrospectively select the imaging data of the ophthalmic inpatients in the Second Affiliated Hospital of Zhejiang University School of Medicine from July 1st to November 31st in 2019 and from July 1st to November 31st in 2020. A total of 516 cases were selected according to the imaging time, including 258 cases in 2019 and 258 cases in 2020. Based on our previous research and the related documents of low-dose CT screening, a series of optimizations on CT scanning parameters and process were carried out in 2020, including the frequency of DR and CT scanning, the number of examinations per capita, the composition ratio of CT and DR, and X-ray dose per capita.Results:In 2020, the average effective doses of chest CT and orbital CT for ophthalmic inpatients were (2.587±1.586) mSv and (0.877±0.733) mSv, significantly lower than those in 2019 ( F=0.52, 0.72, P<0.05), and decreased by 34.82% and 37.13%, respectively. There was no significant difference in the average effective dose of chest DR and head CT between 2020 and 2019 ( F=6.01, 1.81, P>0.05). The number of X-ray examination per capita increased by 0.15 times, and the effective dose increased by 1.44 times (1.589 mSv). Chest DR was the main type of X-ray examination, accounting for 68.79% of all examinations in 2019, while chest CT was the main type, accounting for 71.05% in 2020. The composition of chest CT in 2020 increased by 63.17% compared with 2019, and the compositions of chest DR, orbital CT and cranial CT were decreased by 53.88%, 5.79% and 2.89%, respectively. Conclusions:With dose optimization measures, the single CT dose of ophthalmic inpatients in 2020 was lower than that in 2019. Chest CT increased significantly in frequency, and became main X-ray examination instead of chest DR which made the effective dose of ophthalmic inpatients increasing significantly.
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Objective: To determine the relationship between Vitamin D deficiency with Chest X-Rays severity score and Different Inflammatory Markers in Severe and Critical COVID-19 Patients. Design: A cross-sectional study Setting: The study was conducted in COVID-19 isolation units at Mardan Medical Complex Teaching Hospital (MMCTH) and Bacha Khan Medical College, Pakistan Participants: 206 patients who tested positive for COVID-19 by PCR were included in the final analysis.Data Collection/Intervention: We collected demographic, comorbidity, laboratory, and clinical outcome data from the electronic records of admitted, deceased, or discharged patients.Main outcome measure: Frequency of symptoms, comorbidities, mortality and morbidity, chest x-ray severity scores, different inflammatory markers in Vitamin D deficient Covid-19 patients Results: 128(62.14%) were severe and 78(37.5%) were critical COVID-19 patients. The whole cohort had 82(39.80%) males and 124(60.20%) females, with a median age of 55 IQR (50-73). Study participants' median Vitamin D level was 14.01ng/ml, with a minimum of 7.5ng/ml and a maximum of 70.8ng/ml. 67/206 patients died, with a fatality ratio of 32.5%. 54/67(80.59%) suffered from one or more comorbid conditions. Conclusion: Low Vitamin D levels were linked to a higher risk of death, higher x-ray severity scores, and different inflammatory markers. Vitamin D levels greater than 30ng/ml for older patients and greater than 40ng/ml in older patients with comorbidities were associated with reduced severity and mortality in patients with COVID-19
Subject(s)
Humans , Thorax , Vitamin D Deficiency , Brain Concussion , COVID-19ABSTRACT
RESUMEN Introducción : La radiografía posteroanterior (PA) de tórax es utilizada rutinariamente como examen complementario en la evaluación de trabajadores. Sin embargo, existe la controversia sobre su indicación y utilidad en todos los trabajadores. El presente estudio tuvo como objetivo describir los factores asociados a hallazgos anormales en radiografías digitales de tórax en trabajadores sin síntomas respiratorios. Materiales y métodos : Se realizó un estudio observacional transversal analítico, utilizando registros de placas radiografías digitales de tórax PA de 24 069 trabajadores asintomáticos respiratorios, evaluados en un establecimiento de salud acreditado para la realización de exámenes médicos ocupacionales en el Perú, entre los años 2016 - 2019. Resultados : De los 24 069 trabajadores asintomáticos, 1166 (4,84 % IC 95 % [4,58 - 5,12]) presentaron radiografía anormal. Los principales hallazgos se encontraron en el parénquima pulmonar y de estas, las imágenes secuelares de tuberculosis fueron las más frecuentes. Se observó que los trabajadores mayores de 50 años (RP(a) = 6,34 IC 95 % [1,68 - 2,01]), los que presentaron bajo peso (RP(a) = 2,71 IC 95 % [1,88 - 3,91]) y los que tuvieron antecedentes patológicos pulmonares (RP(a) = 6,19 IC 95 % [5,54 - 6,91]) presentaron mayor probabilidad de presentar anormalidades en la radiografía pulmonar. Conclusiones : Debido a la baja frecuencia de radiografías digitales anormales de tórax, creemos que no resulta de utilidad como detección precoz de patología respiratoria en la población estudiada y que debería considerarse en trabajadores mayores de 50 años, con antecedente de enfermedad respiratoria y/o con bajo peso. Es importante realizar mayor cantidad de estudios que confirmen nuestros resultados.
ABSTRACT Introduction : Posteroanterior Chest X-Ray (CXR) is usually performed as a routine exam for workers' health surveillance, but their benefits are discussed and controversial. Our investigation described the associated factors with abnormal digital CXR in workers without respiratory symptoms. Materials and methods : An analytical cross-sectional observational study was performed, including 24 069 digital CXR obtained from workers without respiratory symptoms who performed their workers' health surveillance at an accredited occupational health center in Lima, Perú, from 2016 to 2019. Results : Of the 24 069 asymptomatic workers, 1166 (4.84 %, 95 % CI [4.58-5.12]) had abnormal radiography. The main findings were found in the lung parenchyma and of these, sequential images of tuberculosis were the most frequent. It was observed that workers older than 50 years (RP(a) = 6.34, 95 % CI [1.68 - 2.01]), those with low weight (RP(a) = 2.71 95 % CI [1.88 - 3.91]) and those with a history of pulmonary pathology (RP(a) = 6.19 95 % CI [5.54 - 6.91]) were more likely to have abnormalities on pulmonary radiography. Conclusions : Due to the low frequency of abnormal digital Chest X-Ray (CXR), it is not useful as an early detection of respiratory pathology in the population studied, however it should be considered in those over 50 years with a history of respiratory disease and/or low weight. It is important to carry out more studies that confirm our results.
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Lung transplantation is the only effective therapeutic option for end-stage lung diseases, and postoperative rejection is the main factor affecting clinical prognosis of the recipients. Imaging examination can be utilized as a noninvasive tool to assist other examinations in monitoring rejection after lung transplantation. At present, multiple imaging examination methods have been reported. The advantages and disadvantages of various imaging examinations have been clarified, which may promote early diagnosis of rejection, deliver timely treatment for lung transplant recipients and improve the quality of life and clinical prognosis. In this article, the advantages, disadvantages and research progress upon different imaging examinations for rejection after lung transplantation were reviewed, aiming to provide reference for identifying the optimal noninvasive examination approach for rejection after lung transplantation and enhance the long-term survival of the recipients.
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Objective: The study was conducted to determine the prevalence of radiologically diagnosed pneumonia among COVID-19 patients and associated factors. Design, setting, and participants: A retrospective manual data extraction of 275 medical records of COVID-19 patients was conducted at two COVID-19 national treatment centres in Accra from March to May 2020. All patients had a chest x-ray done. Main outcome and analysis: The main outcome was the presence of pneumonia. Descriptive statistics and Chi-square test of independence were employed to determine the associations between independent variables and the presence of pneumonia. All analysis was performed using Stata 16, and a p-value ≤ 0.05 was deemed significant Results: The prevalence of pneumonia was 44%(95%CI) =38.2-50.0). Chi-square independent test indicated that pneumonia in the COVID-19 patients was associated with educational level, history of domestic and international travel, mass gathering in the past 14 days before diagnosis, and discharge plan (p-value< 0.05). Patients classified as secondary cases (61.5%) and those discharged as fully recovered from the health facility (61.2%) had a higher prevalence of pneumonia. In addition, COVID-19 patients with hypertension (32.1%) and asthma (5.2%) had a significantly higher prevalence of pneumonia. Conclusion: Overall, the prevalence of pneumonia was 44% and was associated with the demographic and personal characteristics of the patients. Early detection through contact tracing and community surveillance should be intensified to pick up more asymptomatic cases. The role of the chest x-ray for triaging patients and for clinical management of symptomatic patients remains key
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Pneumonia , Mass Chest X-Ray , COVID-19 , Risk Factors , Ghana , Health FacilitiesABSTRACT
RESUMEN: Los pulmones son el sitio predominante en la infección por COVID-19. Esta puede conducir al síndrome distrés respiratorio agudo (SDRA). Frente a su sintomatología severa, la ventilación mecánica (VM), y sus valores de mecánica ventilatoria aparecen como una herramienta fundamental. Un complemento, para analizar el estado de avance de esta patología es la radiografía de tórax (RT), aunque en ocasiones esta depende de la experiencia del equipo de salud. Así el objetivo de esta investigación fue explorar la relación de las medidas de mecánica ventilatoria y radiográficas con el tiempo de conexión a VM en pacientes COVID-19. Estudio retrospectivo, que incluyó a 23 pacientes en VM. Se recolectó información de variables de mecánica ventilatoria; PEEP, presión plateau, presión de distensión y compliance estática. Desde la RT se midió, altura y ancho pulmonar, ángulo costodiafragmático y espacio intercostal. Los resultados indicaron que las variables de mecánica ventilatoria tales como el PEEP y el plateau se relacionaron significativamente con el tiempo de conexión a VM (r=0,449; p=0,035 y r=0,472; p=0,026), mientras que las variables radiográficas construidas en base al ángulo costodiafragmático y el espacio intercostal presentaron similares comportamientos (r= 0,462; p=0,046 y r=-0,543; p=0,009). En conclusión, la presión resultante de la programación del ventilador mecánico junto a cambios estructurales observados en la RT, se relacionan con el tiempo de conexión a VM.
SUMMARY: The lungs are the predominant site of COVID-19 infection. This can lead to severe acute respiratory síndrome (ARDS). In view of its severe symptoms, mechanical ventilation (MV) and its ventilatory mechanics values appear as a fundamental tool. Chest radiography (CR) is a complement to analyze the state of progress of this pathology, although this sometimes depends on the experience of the health team. Thus, the aim of this research was to explore the relationship of ventilatory mechanics and radiographic measures with connection time to MV in COVID-19 patients. Retrospective study, which included 23 patients on MV. Information on ventilatory mechanics variables was collected; PEEP, plateau pressure, distension pressure and static compliance. And from CR, lung height and width, costodiaphragmatic angle and intercostal space were measured. The results indicated that ventilatory mechanics variables such as PEEP and plateau were significantly related to connection time to MV (r = 0.449; p = 0.035 and r = 0.472; p = 0.026), while the radiographic variables Constructed on the basis of the costodiaphragmatic angle and the intercostal space, they showed similar behaviors (r = 0.462; p = 0.046 and r = -0.543; p = 0.009). In conclusion, the pressure resulting from mechanical ventilator programming, together with the structural changes observed in CR, are related to the connection time to MV.
Subject(s)
Humans , Male , Female , Middle Aged , Pneumonia, Viral/pathology , Pneumonia, Viral/diagnostic imaging , Respiration, Artificial , Radiography, Thoracic , Coronavirus Infections/pathology , Coronavirus Infections/diagnostic imaging , Pressure , Time Factors , Retrospective Studies , Positive-Pressure RespirationABSTRACT
Background: Worldwide 16% of death in children under the age 5 years is only due to pneumonia every year. Among the diagnostic modality x-ray chest is simple tool to diagnose the pneumonia especially in developing country like in India. Aims of study was to know the incidence of radiologically proven pneumonia and to see the correlation between x-rays findings and clinical severity of pneumonia, so as to predict the severity of pneumonia on the basis of x-ray chest done on first day of hospitalization.Methods: We did the study in department of pediatrics at tertiary care centre, total 150 patients of pneumonia (2 months to 5 years age) enrolled on clinical basis. X-ray chest done in all patients on first contact.Results: Out of 150 patients, 54% of patient having radiologically proven pneumonia while 46% were normal x-ray findings. We found that interstitial pneumonia were more common in younger children, but lobar pneumonia were more common in older children, but in severe and very severe pneumonia cases most common radiologically proven pneumonia were bronchopneumonia in all age group, which was statistically significant.Conclusions: So the basis of start of treatment should be on the clinical background and clinical severity, not only on the basis of x-ray chest findings. Late x-ray films give more chance of positive findings, multilobar infiltration or diffuse heterogeneous opacity in lungs positively correlated with clinical severity and gives idea about course and duration of hospitalization.
ABSTRACT
Introduction: Computed tomography (CT) scan is an accurate tool for the detection of injuries in a trauma setting and is able to find the injuries that were occult in chest X-ray (CXR). In past years, the utility of CT scan was limited to severe trauma injuries but now is used in less severely injured trauma patients. The study aimed to compare the efficacy of CXR and chest CT scans in patients with chest trauma. Materials and Methods: The present study was conducted in the Department of Surgery of Medical Institute. For the study, we prospectively view the previous medical records of the patients who were admitted in our surgical ward for blunt chest trauma and received both CXR and high resolution CT chest scans. A total of 95 patients were included in the study. Data regarding the study were collected. Results: Out of 95 patients, 79 were males and 16 females. The mean age of the patients was 32.42 years ranging from 2 to 90 years. The most common cause for blunt trauma to the chest according to our results was a road traffic accident. We observed that CT scan is more accurate as compared to CXR in the detection of certain cases such as sternum fracture, rib fracture, scapula fracture, lung contusion, hemothorax, and pneumothorax. Conclusion: Chest CT scan is highly sensitive in the detection of thoracic injuries following blunt chest trauma. In day-to-day practice, CT scan is better in visualizing as sternum fracture, rib fracture, scapula fracture, lung contusion, hemothorax, and pneumothorax