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ABSTRACT Introduction: Pericardial effusion is a common complication without a standard postoperative effusion treatment after cardiac surgery. The grooved negative pressure drainage tube has many advantages as the emerging alternative for drainage of pericardial effusion, such as it changes the structure of the traditional side hole, uses the capillary function to ensure drainage smooth, etc. The purpose of this study was to assess the feasibility and effectiveness of transthoracic color Doppler ultrasound-guided grooved negative pressure drainage tube implantation in pericardial effusion after cardiac surgery. Methods: All patients with pericardial effusion after cardiac surgery who underwent transthoracic color Doppler ultrasound-guided grooved negative pressure drainage tube implantation between January 2019 and December 2021 were retrospectively analyzed. Treatment results (including clinical symptoms, effusion volume, color Doppler ultrasonography, and computed tomography scan) were investigated to evaluate the effectiveness and safety of this method. Results: A total of 20 patients successfully underwent transthoracic color Doppler ultrasound-guided grooved negative pressure drainage tube implantation. After the operation, their symptoms (chest tightness, shortness of breath, etc.) were all relieved, and dark red or light red drainage fluid (> 200 ml) appeared in the newly placed drainage bottle. Color Doppler ultrasonography showed that the volume of pericardial effusion decreased significantly. Conclusion: The transthoracic color Doppler ultrasound-guided grooved negative pressure drainage tube is a safe and effective method for the treatment of postoperative pericardial effusion with less trauma, faster recovery, shorter in-hospital stay, and fewer complications.
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Resumen: La ecografía obstétrica, nos permite determinar con adecuada precisión la biometría fetal y realizar el seguimiento de su curva de crecimiento en función de la edad gestacional. El Eco-Doppler Feto-Placentario, permite el estudio del flujo sanguíneo materno-fetal y de la circulación placentaria de forma no invasiva, inocua y reproducible. Su eficacia ha sido demostrada en el control del embarazo de alto riesgo obstétrico, logrando una reducción de la mortalidad perinatal del 49%. El mismo evalúa la circulación útero - placentaria (arterias uterinas y arteria umbilical), la circulación fetal arterial (arteria cerebral media) y la venosa (Ductus Venoso, Vena Cava Inferior, Vena Umbilical). Identificar el grupo de pacientes con trombofilia, que requieren un control ecográfico más estricto es fundamental para lograr el beneficio con el tratamiento médico.
Abstract: Obstetric ultrasound allows us to determine with adequate precision the fetal biometry and to monitor its growth curve based on gestational age. The Feto-Placental Eco-Doppler allows the study of maternal-fetal blood flow and placental circulation in a non-invasive, safe and reproducible way. Its efficacy has been demonstrated in the control of high-risk obstetric pregnancy, achieving a 49% reduction in perinatal mortality. It evaluates the uterine-placental circulation (uterine arteries and umbilical artery), the fetal arterial circulation (middle cerebral artery) and the venous circulation (Ductus Venoso, Inferior Vena Cava, Umbilical Vein). Identifying the group of patients with thrombophilia, who require stricter ultrasound control is essential to achieve benefit with medical treatment.
Resumo: A ultrassonografia obstétrica permite determinar com precisão adequada a biometria fetal e monitorar sua curva de crescimento com base na idade gestacional. O Eco-Doppler Feto-Placental permite o estudo do fluxo sanguíneo materno-fetal e da circulação placentária de forma não invasiva, segura e reprodutível. Sua eficácia foi demonstrada no controle da gravidez obstétrica de alto risco, alcançando uma redução de 49% na mortalidade perinatal. Avalia a circulação útero-placentária (artérias uterinas e artéria umbilical), a circulação arterial fetal (artéria cerebral média) e a circulação venosa (Canal Venoso, Veia Cava Inferior, Veia Umbilical). Identificar o grupo de pacientes com trombofilia, que necessita de controle ultrassonográfico mais rígido, é essencial para obter benefício com o tratamento médico.
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Objectiv:To evaluate ultrasound, radionuclide imaging and CT in preoperative localization diagnosis of primary hyperparathyroidism (PHPT).Method:A total of 170 PHPT patients admitted to the hospital between Jan 1992 and Dec 2020 were analyzed retrospectively. The preoperative localization diagnostic efficacy of ultrasonography, radionuclide and CT alone and in combination was compared in groups.Results:The overall sensitivity of ultrasound, radionuclide and CT were 82.13%,80.43% and 75.74%. For normal positioned parathyroid adenoma: as for sensitivity of location diagnosis, ultrasound (86.67%) was higher than radionuclide (81.82%, P<0.05) and CT (80.59%, P<0.05), ultrasound/CT parallel test (94.70%, P<0.05) was higher than ultrasound alone. For specificity of location diagnosis, radionuclide (97.78%) was higher than ultrasound (91.62%) and CT (93.39%), both ultrasound/radionuclide series tests (99.00%, P<0.001)and ultrasound/CT series tests (96.94%, P<0.001) were higher than ultrasound alone. In case of ectopic parathyroid adenoma and parathyroid hyperplasia: the sensitivity and specificity of radionuclide seemed higher than ultrasound and CT. Conclusions:Ultrasound is the first choice for preoperative location diagnosis of PHPT. Ultrasound combined with radionuclide or CT can significantly improve the diagnostic efficiency of parathyroid lesions.
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Objective@#To investigate the relationship between ultrasound derived ratio of femoral vein to femoral artery diameter and hemodynamics in patients with heart failure.@*Methods@#This was a case-control study. A total of 61 patients with heart failure and 49 patients with non-heart failure hospitalized in the Department of Critical Care Medicine from September 2017 to September 2018 were included in this study. Doppler ultrasound was used to measure the femoral artery and vein diameter. After deep inhalation, the femoral vein diameter was measured again, and the ratio of femoral vein and artery diameter was calculated. The central venous pressure (CVP) and mean pulmonary wedge pressure (mPAWP) were also measured. Pearson correlation analysis was used to explore the correlation between the ratio of femoral vein diameter to femoral artery diameter and CVP and mPAWP, and linear regression equation was established.@*Results@#The overall CVP and mPAWP levels were significantly higher, and the femoral vein diameter after deep inhalation was bigger in heart failure patients than in non-heart failure patients(all P<0.001). The femoral vein diameter/femoral artery diameter ratio was positively correlated with CVP (r=0.76, P<0.001), and positively correlated with mPAWP (r=0.40, P<0.001) in heart failure group. The linear regression equation established by the femoral vein/femoral artery diameter ratio and CVP in the heart failure group showed that the inner diameter of the femoral vein/the inner diameter of the femoral artery ratio≥1.3 corresponded CVP≥15.518 cmH2O(1 cmH2O=0.098 kPa) in heart failure patients.@*Conclusions@#In patients with heart failure, the inner diameter of the femoral vein/femoral artery ratio is positively correlated with CVP and mPAWP. The ratio of inner diameter of the femoral vein/femoral artery can be used to assess the volumetric load of patients with heart failure and to guide the clinical treatment of heart failure patients.
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Objective To investigate the feasibility and effectiveness of internal jugular vein (IJV) intervention therapy in patients with cerebral venous sinus thrombosis (CVST)with color Doppler ultrasound (CDU). Methods Twelve patients with CVST diagnosed by CDU and the 13 IJV lesions (localized luminal stenosis in 9 cases,venous long-segment slender in 2 cases,and right IJV localized luminal stenosis,and long-segment slender on the left in 1 case)confirmed by magnetic resonance venography (MRV)and/ or digital subtraction angiography (DSA)were enrolled retrospectively. CDU examinations were used at 1 week before and after IJV intervention therapy,6 months,1 year,and 2 years. The changes of the maximum diameter and the maximum velocity (V max )of the IJV were compared. The success rate and the long-term efficacy of the intervention therapy were analyzed. Results One week after treatment,the CDU examinations showed that the diameter of IJV stenosis in 13 IJV were increased significantly compared with those before procedure (4. 7 ± 2. 1 mm vs. 2. 3 ± 1. 3 mm;t = 5. 325,P < 0. 01). The velocity of blood flow of IJV was improved compared with before procedure (localized stenosis in 10 IJV[50 ± 15 cm/ s vs. 87 ± 24 cm/ s];t = 6. 285,P < 0. 01). Six of the 12 patients were followed up for a mean of 18 ± 7 months, two patients had restenosis after balloon dilatation. Conclusions For CVST patients with IJV lesions,the preliminary observation has indicated that IJV intervention therapy may improve the lesion lumen and hemodynamics. However,the intervention therapy,especially after balloon dilatation,the incidence of restenosis is higher. CDU can be used as an objective evaluation means for the long-term efficacy of IJV stenosis.
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Objective To explore ductus venous abnormal -looking blood flow parameters and spectrum morphology in the application value of fetal congenital heart disease screening.Methods 210 cases of normal fetal antenatal examination were selected as a normal control group,48 cases of congenital heart disease the fetus,then the component type according to right heart function,to the abnormal ductus venous blood flow spectrum combined with pathologic contrast analysis.Results 48 cases of CHD in the fetus,18 cases of left heart system dysplasia,30 cases of right heart system dysplasia.In order to right heart function change respectively:right heart preload increased 15 cases,right heart load increased after 25 cases,8 cases of right heart function change was not obvious.Conclusion Ductus venous and parameters have abnormal blood flow spectrum,highly suggestive fetal congenital heart disease, especially dysplasia fetal heart right system can serve as an indicators of early screening for CHD.
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Objective Toinvestigatethechangesofcognitiveimpairmentandcerebralhemodynamics inpatientswithacutelacunarcerebralinfarctionwithin2weeksafteronset.Methods Nineteenpatients with lacunar cerebral infarction (a patient group)were consecutive enrolled in the study. Twenty-three sex-and age-matched inpatients without ischemic cerebrovascular disease or healthy volunteers of outpatient department over the same period were used as a control group. The cerebral hemodynamic features were evaluated with transcranial Doppler (TCD)breath-holding test and single photon emission computed tomography (SPECT)resting + adenosine stress imaging. Simultaneously,the neuropsychological tests were performed,the Montreal cognitive assessment (MoCA)was performed including executive capacity, structural capacity,memory (including auditory memory,visual memory,and logic memory ),information processing speed,and visual-spatial ability. Results (1 )There were no significant differences in the years of education,hypertension,diabetes,hyperlipidemia,coronary heart disease,and smoking between the 2 groups (all P>0. 05). Compared with the control group,there were significant differences in the MoCA score,visual memory,executive function,structural capacity,and information processing speed of the patient group (all P<0. 05). (2)19 patients completed the SPECT resting + load test (12 in the control group and 7 in the patient group). There were significant differences in the uptake ratio (UR)in the right basal ganglia (8. 91[-2. 48 - 5. 87]and -6. 21 [-10. 39 - 5. 42 respectively])and left frontal lobe UR (11. 62 [2. 93-16. 87]and 1. 04 [-10. 17- 3. 82]respectively)between the patient group and the control group (P<0. 05). (3)26 patients completed the breath-holding test + head-up tilt table test (n=13 in each group]. The vascular motor reactivities were 13 ± 5 on the left and 21 ± 7 on the right, and the breath-holding indexes were 0. 66 ± 0. 26 on the left and 1. 0 ± 0. 4 on the right in the patient group;the vascular motor reactivities were 24 ± 11 on the left and 30 ± 9 on the right,and the breath-holding indexes were 1. 21 ± 0. 57 on the left and 1. 5 ± 0. 4 on the right in the control group. There were significant differencesbetweenthe2groups(P<0.05).Conclusion Attheearlystageoflacunarinfarction,the patients have presented varying degrees of cognitive impairment and the changes of cerebral hemodynamics.
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Objective To analyze and compare the values of applying color Doppler ultrasound in the diag -nosis of testicular torsio and acute epididymo -orchitis.Methods 90 males in our hospital were selected and divided into the testicular torsion group and acute epididymo -orchitis group ,color Doppler ultrasound was applied in the two groups.Results After examination by color Doppler ultrasound ,it showed that there were significant differences in blood supply of testicle ,epididymis between the two groups ,the diagnostic result was accurate with statistical signifi-cance(χ2 =11.408,11.944,P<0.05).Conclusion It can highlight the images and blood supply features of testic-ular torsion and acute epididymo -orchitis that applying color Doppler ultrasound ,and as an economic ,practical ,accu-rate and non-invasive examination ,it can diagnose testicular torsion and acute epididymo -orchitis accurately ,so it's the preference for testicular torsio and acute epididymo -orchitis.
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Objective To investigate the correlation between the stroke-related risk factors and carotid stenosis lesions of ≥40 year′s old Han and minority populations in a community in Beijing as well as the clinical value of carotid ultrasound screening. Methods An investigation of risk factors for stroke and the results of carotid artery ultrasound screening in 510 cases (≥40 years old) Han population and 243 minority population in a community in Minzu University of China in Beijing in April 2014 were analyzed. Results (1)The prevalence of hypertension of the Han population was significantly higher than that of the minority population (53. 5% [n=273] vs. 44. 4% [n=108]; χ2 =5. 43,P=0. 02). (2) The detected rate of carotid intima-media thickness ( IMT ) of the Han population was higher than that of the minority population (77. 5% [n=395] vs. 69. 1% [n=168]; χ2 =6. 03,P=0. 01). There was no significantly difference in the detected rates of carotid plaques and carotid artery stenosis between the two groups (χ2 =0. 56,1. 13 respectively,all P>0. 05). (3) Hypertension and smoking were the independent risk factors for carotid-intima thickening in Han population ( hypertension:OR,1. 851;95% CI 1. 213-2. 825; smoking:OR,2. 311;95% CI 1. 065-5. 016;all P<0. 05). Hyperlipidemia was an independent risk factor for carotid artery intima-media thickening in the minority population (OR,2. 586;95% CI 0. 952-8. 694,P<0. 01). Conclusion To investigate the risk factors for stroke in minority population in China are of particular importance for the prevention of carotid atherosclerotic disease. Carotid ultrasound examination is an important diagnostic technique for early detection of carotid atherosclerotic disease.
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It is well established that pulmonary vascular resistance plays a pivotal role in the postnatal decrease of pulmonary arterial pressure in neonates.Catheterization has been demonstrated that mean pulmonary arterial pressure(PAP) equals or exceeds systemic for as long as 1 hour after birth.Thereafter,a gradual decrease in pressure occurs with the major fall taking place during the first 24 hours.By 3 days of age,the mean pulmonary arterial pressure is less than 50 per cent of that in the systemic circulation.Tricuspid regurgitation(TR) and ductal flow velocity(PDA) have the largest number of confidence steps in the expected range of values.The most repeatable technique is TR,but PDA might also be useful for a serial studies owing to the potential for large change.This paper reviews the PAP of normal full-term infants after birth by catheterization and Doppler ultrasound,in order to provide some clinic basis for pulmonary hypertension identification.
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When a tooth shows discoloration and does not respond to the cold test or electric pulp test (EPT) after a traumatic injury, its diagnosis can be even more difficult due to the lack of proper diagnostic methods to evaluate its vitality. In these case reports, we hope to demonstrate that ultrasound Doppler might be successfully used to evaluate the vitality of the tooth after trauma, and help reduce unnecessary endodontic treatments. In all three of the present cases, the teeth were discolored after traumatic injuries and showed negative responses to the cold test and EPT. However, they showed distinctive vital reactions in the ultrasound Doppler test during the whole observation period. In the first case, the tooth color returned to normal, and the tooth showed a positive response to the cold test and EPT at 10 wk after the injury. In the second case, the tooth color had returned to its normal shade at 10 wk after the traumatic injury but remained insensitive to the cold test and EPT. In the third case, the discoloration was successfully treated with vital tooth bleaching.
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Diagnosis , Hope , Methods , Tooth Bleaching , Tooth Discoloration , Tooth , UltrasonographyABSTRACT
Objective To explore the value of high-frequency color Doppler ultrasound in the early diagnosis of breast cancer. Methods 46 cases of pathologically confirmed by surgery for breast cancer after preoperative high-frequency color Doppler ultrasound diagnosis were retrospectively analyzed. Results Among preoperative ultrasound diagnosis of breast cancer(41 cases) ,5 cases was fibroadenoma and ultrasound diagnosis and pathology diagnosis consistent rate was 89. 1%. Two-dimensional sonographic features of breast cancer were lumps form less rules,no capsule, the border less clear,and some was like or Crab-like glitches,and Aspect ratio was greater than 1,internal had the non-uniform weak echo,some showed the sand-like calcification,rear echo attenuation,Color Doppler flow characteristics :mass flow signals could be seen around and inside, Vmax value range was 6. 6 cm / s ～ 45. 1 cm / s, Vmean(21.50 ± 10.62) cm/s,RI:0.59 ～ 1.0,an average of(0.74 ±0.1). Conclusion High frequency color Doppler ultrasonography in early diagnosis of breast cancer had a high value.
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Coronal discoloration is a common sequela to traumatic injuries. In subluxation cases, although the injury is not strong enough to rupture the apical vessels, discoloration may appear by tearing thin walls or occluding small capillaries. In absence of infection pulpal regeneration can occur, and as a result discoloration may completely or partially subside. But judging pulpal status by coronal discoloration can be dangerous and it may lead to unnecessary treatment. This case presents coronal discoloration and recovery following traumatic injury of maxillary anterior teeth. In diagnosing traumatized teeth routine cold tests or electric pulp tests are known to be unreliable, but with the aid of ultrasound doppler imaging, assessing pulp vitality of traumatized teeth can be more accurate.
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Capillaries , Cold Temperature , Regeneration , Rupture , ToothABSTRACT
The purpose of this study was to analyze morphological and functional changes in the left ventricular muscle mass and vessel diameters of the arteries in young competitive athletes of various sports and evaluate the correlation between the heart and arterial vessel under the training environment in this latter half of the growth period. The subjects were 51 male college student athletes (mean age, 19.6±0.4 years) of 6 competitive sports (archery, weight lifting, swimming, short-distance races, middle-distance races, and long-distance races) . The diameters of the right and left common carotid arteries, right and left radial arteries, right and left foot dorsal arteries, and the aorta and the left ventricular muscle mass (LVM) were measured by Doppler echocardiography. To minimize the influences of the physique and body weight associated with growth and sport types, all data obtained by measurement were corrected by body surface area. The sum of the diameters of all the above arteries (total arterial diameter : TAD) was obtained to evaluate its correlation with the left ventricular muscle mass. The diameter of the foot dorsal artery was significantly higher in the long-distance runners than in the sprinters (P<0.05) . The diameter of the radial artery according to the 6 types of sport was the highest for weight lifting, followed in order by archery, longdistance races, middle-distance races, swimming, and short-distance races, showing a significant difference between weight lifting and short-distance races (P<0.05 ) . TAD was high for generalized endurance sports and correlated with the left ventricular muscle mass (r=0.893) . Thus, the arterial diameters significantly differed among competitive sports and were particularly increased for endurance exercise. The diameters of the local arteries used for local exercise were also increased. When TAD as a new parameter and its ratio per body surface area were calculated, there was a high correlation between the heart (left ventricular muscle mass) and the arterial diameter. These results suggest that exercise adaptation can he evaluated in the arterial system in svstemic circulation as well as the nervous and muscular systems.
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A prospective study on a group of 129 patient was echocardiographical compared with a group of 109 normal subjects: based on Framingham criteria, the prevalence of LV hypertrophy were 88.4%, LV dilatation - 58.9% and systolic dysfunction - 21.7%. To determine the influence of haemodyalysis on echo-Doppler indices of the heart, 58 patients were studied by Doppler-echocardiography immediately before and after haemodialysis. This procedure resulted in immediate alterations of the heart: decrease in blood pressure, increase in heart rate. Left ventricular diameters and volumes decreased significantly whereas, the systolic function, cardiac output and index increased. Haemodialysis elicited marked changes in the left ventricular filling pattern: mitral peak E, peak A, ratio E/A decreased and pulmonary vein flow S/D ratio increased. The results provide evidence for the pronounced preload-dependence of morphologic, functional and hemodinamic indices of the heart.
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Hemodialysis Solutions , Ultrasonics , Renal DialysisABSTRACT
The restriction between distance and velocity measurement in medical Doppler ultra-sound is first proposed in this paper.The reasons resulting in this restriction are also analysed.Then our method to estimate blood flow velocity profile is introduced,in which the restriction is avoided.The discussion of this restriction in medical Doppler ultrasound and the method to detect blood flow velocity profile are finally presented.