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1.
Diagnostics (Basel) ; 14(13)2024 Jun 26.
Artigo em Inglês | MEDLINE | ID: mdl-39001250

RESUMO

(1) Background: Femicide is an increasing phenomenon consisting of the murder of a woman for gender-related reasons. Despite the enactment of new laws aimed at controlling the phenomenon by toughening the penalties and introducing aggravating circumstances, there is an increasing trend that testifies to the persistence of a flaw in the actual measures. (2) Case Presentation. We report the case of the murder of a 32-year-old woman-perpetrated by an ex-husband who refused to accept the end of the marriage-the analysis of which allowed us to frame the case as femicide. (3) Discussion. Despite global awareness of this phenomenon, the identification of risk factors to predict and prevent femicide is of utmost importance. This can be achieved by a multidisciplinary approach involving police officers, legal professionals, hospitals, governmental and nongovernmental organizations, and medico-legal departments aimed at promoting standardized methodologies. (4) Conclusions. We evaluate the contribution of forensic investigations to the identification of key elements that can help frame the murder of a woman as a femicide. Considering the devastating consequences for children who witness this kind of violence within the domestic setting, the planning of more impactful preventive actions is, thus, mandatory to minimize effects on public health.

2.
Semin Ultrasound CT MR ; 44(3): 194-204, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37245884

RESUMO

Gastrointestinal stromal tumors (GISTs) arise from the interstitial cells of Cajal in the gastrointestinal tract and are the most common intestinal tumors. Usually GISTs are asymptomatic, especially small tumors that may not cause any symptoms and may be found accidentally on abdominal CT scans. Discovering of inhibitor of receptor tyrosine kinases has changed the outcome of patients with high-risk GISTs. This paper will focus on the role of imaging in diagnosis, characterization and follow-up. We shall also report our local experience in radiomics evaluation of GISTs.


Assuntos
Neoplasias Gastrointestinais , Tumores do Estroma Gastrointestinal , Radiômica , Humanos , Tumores do Estroma Gastrointestinal/diagnóstico , Neoplasias Gastrointestinais/diagnóstico , Tomografia Computadorizada por Raios X/métodos
3.
Forensic Sci Int ; 347: 111687, 2023 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-37062141

RESUMO

The present case-report empathizes the usefulness of post-mortem computed tomography (PMCT) in the detection of live birth signs in a baby found dead, comparing the results with standard autoptic, histologic and immunohistochemical examinations. The report describes the case of a new-born who was thrown out on the footpath from a window of the fifth floor according to the investigative police, whilst the mother has hidden herself immediately after childbirth. PMCT showed diffusely aerated lung parenchyma with signs of severe lung distress, air in the airways with no fluid inside, and air in the upper gastro-intestinal tract, in absence any resuscitation manoeuvres performed on the baby at delivery. PMCT underlined multiple fractures of the skull with degeneration of cerebral parenchyma. All these findings were confirmed by conventional autopsy and histological and immunohistochemical examinations, clinching the usefulness of PMCT in differentiating live births from stillbirths.


Assuntos
Recém-Nascido Prematuro , Tomografia Computadorizada por Raios X , Lactente , Feminino , Humanos , Recém-Nascido , Autopsia/métodos , Patologia Legal/métodos , Tomografia Computadorizada por Raios X/métodos , Homicídio
4.
Healthcare (Basel) ; 11(4)2023 Feb 11.
Artigo em Inglês | MEDLINE | ID: mdl-36833074

RESUMO

The investigation of bone injuries is an essential topic in forensics. We sometimes have to deal with charred or dismembered human remains that have lost soft tissue, making it difficult to diagnose the mechanisms of injury that led to death. Our contribution aims to share with the scientific community how we approached two cases of very different bone injuries and the techniques used to differentiate relevant pathology findings of bone fragments. Two cases are analyzed from the case history of the forensic medicine institute of Palermo. PMCT made it possible to differentiate heat bone lesions from traumatic lesions. The stereomicroscope was superior to PMCT in being able to better characterize and evaluate shear injuries, allowing a more accurate measurement of acute lesions. Injury to bone remains can be appropriately investigated with rapid techniques such as PMCT and stereomicroscopy. The presented methodology shows the importance of a multidisciplinary approach when dealing with bone injuries in forensics that could find further applications in other circumstances to answer forensic questions.

5.
Radiol Med ; 128(3): 299-306, 2023 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-36786969

RESUMO

PURPOSE: The aim of our study was to evaluate the prevalence of early complications after Transcatheter Aortic Valve Implantation (TAVI) and their correlation with the Calcium Score (CS) of the aortic valve, aorta and ilio-femoral arteries derived from pre-procedural computed tomography (CT). MATERIALS AND METHODS: We retrospectively reviewed 226 patients (100 males, mean age 79.4 ± 6.7 years) undergoing 64-slice CT for pre-TAVI evaluation from January 2018 to April 2021. The population was divided into CS quartiles. RESULTS: Overall, 173 patients underwent TAVI procedure, of whom 61% presented paravalvular leak after the procedure, 28% presented bleeding or vascular complications, 25% presented atrioventricular block, and 8% developed acute kidney injury. The prevalence of paravalvular leak and vascular complications was higher in the upper CS quartiles for aortic valve and ilio-femoral arteries. CONCLUSIONS: Aortic valve and vascular CS could help to predict post-TAVI early complications.


Assuntos
Estenose da Valva Aórtica , Substituição da Valva Aórtica Transcateter , Masculino , Humanos , Idoso , Idoso de 80 Anos ou mais , Valva Aórtica/diagnóstico por imagem , Valva Aórtica/cirurgia , Substituição da Valva Aórtica Transcateter/efeitos adversos , Substituição da Valva Aórtica Transcateter/métodos , Cálcio , Estudos Retrospectivos , Estenose da Valva Aórtica/diagnóstico por imagem , Estenose da Valva Aórtica/cirurgia , Tomografia Computadorizada por Raios X , Resultado do Tratamento
6.
Cancers (Basel) ; 15(2)2023 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-36672451

RESUMO

OBJECTIVE: To identify the best method among the radiologic, laparoscopic and laparotomic scoring assessment to predict the outcomes of cytoreductive surgery in patients with advanced ovarian cancer (AOC). METHODS: Patients with AOC who underwent pre-operative computed tomography (CT) scan, laparoscopic evaluation, and cytoreductive surgery between August 2016 and February 2021 were retrospectively reviewed. Predictive Index (PI) score and Peritoneal Cancer Index (PCI) scores were used to estimate the tumor load and predict the residual disease in the primary debulking surgery (PDS) and interval debulking surgery (IDS) after neoadjuvant chemotherapy (NACT) groups. Concordance percentages were calculated between the two scores. RESULTS: Among 100 eligible patients, 69 underwent PDS, and 31 underwent NACT and IDS. Complete cytoreduction was achieved in 72.5% of patients in the PDS group and 77.4% in the IDS. In patients undergoing PDS, the laparoscopic PI and the laparotomic PCI had the best accuracies for complete cytoreduction (R0) [area under the curve (AUC) = 0.78 and AUC = 0.83, respectively]. In the IDS group, the laparotomic PI (AUC = 0.75) and the laparoscopic PCI (AUC= 0.87) were associated with the best accuracy in R0 prediction. Furthermore, radiological assessment, through PI and PCI, was associated with the worst accuracy in either PDS or IDS group (PI in PDS: AUC = 0.64; PCI in PDS: AUC = 0.64; PI in IDS: AUC = 0.46; PCI in IDS: AUC = 0.47). CONCLUSION: The laparoscopic score assessment had high accuracy for optimal cytoreduction in AOC patients undergoing PDS or IDS. Integrating diagnostic laparoscopy in the decision-making algorithm to accurately triage AOC patients to different treatment strategies seems necessary.

7.
BMC Womens Health ; 22(1): 380, 2022 09 18.
Artigo em Inglês | MEDLINE | ID: mdl-36117184

RESUMO

BACKGROUND: Pheochromocytoma and Paraganglioma (PGL) are rare neuroendocrine tumors, with an estimated incidence of about 0.6 cases per 100.000 person/year. Overall, 3-8% of them are malignant. These tumors are characterized by a classic triad of symptoms (headaches, palpitations, profuse sweating) due to hypersecretion of catecholamines. Despite several advantages of minimally invasive surgery (MIS) for PGL debulking, the surgical approach is not standardized yet. In this scenario, we aimed to report a case of a multiple recurrent PGL with metastatic retroperitoneal localization involving the pelvic sidewall, excised with MIS. CASE PRESENTATION: We performed complete laparoscopic-assisted neuronavigation (LANN technique) with isolation of the sacral routes and the sciatic nerve to obtain complete exposure of the main anatomic landmarks. Robotic surgery was used to perform neurolysis of sacral plexus, and partial resection of left splanchnic nerves was needed. After the resection of the first mass, extensive neurolysis of all sacral routes, obturator nerve, pudendal nerve till the entrance of the pudendal (Alcock) canal, and sciatic nerve was performed. Finally, the mass was identified after trans gluteal incision and dissection of the maximum gluteal muscle, and a partial resection of the superior gluteal nerve and slicing of the sciatic nerve were needed to obtain a radical excision of the mass. Then neurorrhaphy of the sectioned nerve fibers of the superior gluteal nerve was performed, and nerve protection was obtained using a collagen nerve wrap. After 18 months of follow-up, the patient is free of disease at the MRI imaging and 123I-metaiodobenzylguanidine scintigraphy. CONCLUSIONS: Minimally invasive gynecological surgery with neuropelveological approach could be considered as a feasible option in case of multifocal pelvic retroperitoneal malignant paraganglioma of the pelvic side wall.


Assuntos
Paraganglioma , Pelve , Catecolaminas , Humanos , Plexo Lombossacral/cirurgia , Paraganglioma/diagnóstico por imagem , Paraganglioma/cirurgia , Pelve/cirurgia , Nervos Esplâncnicos/cirurgia
8.
Sensors (Basel) ; 22(14)2022 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-35890977

RESUMO

Unmanned Aerial Vehicles (UAVs) are often studied as tools to perform data collection from Wireless Sensor Networks (WSNs). Path planning is a fundamental aspect of this endeavor. Works in the current literature assume that data are always ready to be retrieved when the UAV passes. This operational model is quite rigid and does not allow for the integration of the UAV as a computational object playing an active role in the network. In fact, the UAV could begin the computation on a first visit and retrieve the data later. Potentially, the UAV could orchestrate the distributed computation to improve its performance, change its parameters, and even upload new applications to the sensor network. In this paper, we analyze a scenario where a UAV plays an active role in the operation of multiple sensor networks by visiting different node clusters to initiate distributed computation and collect the final outcomes. The experimental results validate the effectiveness of the proposed method in optimizing total flight time, Average Age of Information, Average cluster computation end time, and Average data collection time compared to prevalent approaches to UAV path-planning that are adapted to the purpose.

9.
Molecules ; 26(24)2021 Dec 15.
Artigo em Inglês | MEDLINE | ID: mdl-34946678

RESUMO

The iconographic heritage is one of the treasures of Byzantine art that have enriched the south of Italy, and Sicily in particular, since the early 16th century. In this work, the investigations of a Sicilian Icon of Greek-Byzantine origin, the Madonna dell'Elemosina, is reported for the first time. The study was carried out using mainly non-invasive imaging techniques (photography in reflectance and grazing visible light, UV fluorescence, infrared reflectography, radiography, and computed tomography) and spectroscopic techniques (X-ray fluorescence and infrared spectroscopy). The identification of the constituent materials provides a decisive contribution to the correct historical and artistic placement of the Icon, a treasure of the Eastern European historical community in Sicily. Some hidden details have also been highlighted. Most importantly, the information obtained enables us to define its conservation state, the presence of foreign materials, and to direct its protection and restoration.

10.
Clin Imaging ; 80: 304-314, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34482241

RESUMO

Due to the growing use of CT, there has been an increase in the frequency of detecting focal liver lesions. Intrinsically hyperattenuating hepatic lesions or pseudolesions are not uncommon at unenhanced CT. Hyperattenuating hepatic lesions can be divided into non-calcified and calcified. Causes of intrinsic hyperattenuation include hemorrhage, thrombosis, and calcifications. Focal liver lesions can show hyperattenuation on unenhanced CT in case of severe liver steatosis. Recognition of etiologies associated with hyperattenuation on unenhanced CT can help the radiologist in characterizing focal liver lesions and pseudolesions. In this paper, we describe the spectrum of intrinsically hyperattenuating focal liver lesions and pseudolesions at unenhanced CT.


Assuntos
Calcinose , Fígado Gorduroso , Neoplasias Hepáticas , Calcinose/diagnóstico por imagem , Diagnóstico Diferencial , Fígado Gorduroso/diagnóstico por imagem , Humanos , Neoplasias Hepáticas/diagnóstico por imagem , Tomografia Computadorizada por Raios X
11.
J Minim Invasive Gynecol ; 28(12): 1978-1979, 2021 12.
Artigo em Inglês | MEDLINE | ID: mdl-34224872

RESUMO

STUDY OBJECTIVE: To demonstrate the application of surgical neuroanatomic principles for the diagnosis and treatment of deep infiltrating endometriosis involving the lateral femoral cutaneous nerve. DESIGN: Video demonstration of laparoscopic lateral femoral cutaneous endometriosis resection with nerve transplant. SETTING: Endometriosis infiltrating somatic nerves is a poorly known condition, which can cause severe neuropathic symptoms [1] and is often unrecognized with a subsequent treatment delay [1]. Intimate knowledge of pelvic neuroanatomy and expertise in minimally invasive surgery are essential to manage this challenging surgical scenario [2-4]. INTERVENTIONS: Thirty-six years old patient with primary infertility and chronic pelvic pain associated with dysmenorrhea, dyspareunia, dysuria, and dyschezia. Preoperative magnetic resonance imaging detected a 3-cm parauterine and a 2-cm retrocervical endometriosis nodule. Magnetic resonance imaging did not demonstrate pelvic nerve involvement. Preoperative neuropelveologic assessment demonstrated a significant hypoesthesia of the corresponding lateral femoral cutaneous nerve dermatome, representing the primary complaint. A swab test showed spotting areas of allodynia. These findings prompted us to investigate for a right lateral femoral cutaneous entrapment. Laparoscopy showed an endometriosis nodule infiltrating the right lateral femoral cutaneous nerve. A resection of the nerve was necessary, and a subsequent reconstruction with a collagen bovine neuro-guide was carried out. The operative time was 300 minutes, and the estimated blood loss was 150 mL. Hospital stay was 3 days. After 3 months, the patient showed a clinical improvement in the pain and hypoesthesia on the reconstructed nerve dermatome. CONCLUSION: Neuropelvic anatomic assessment should be considered during the preoperative evaluation for patients with endometriosis who have pelvic pain and neuropathy as part of the diagnostic process [5]. This unique case demonstrates that nerve resection and transplantation can be used in specific situations for neuropathy related to deep infiltrative endometriosis of pelvic nerves.


Assuntos
Endometriose , Laparoscopia , Adulto , Animais , Bovinos , Constipação Intestinal , Endometriose/complicações , Endometriose/cirurgia , Humanos
12.
Diagnostics (Basel) ; 11(6)2021 May 31.
Artigo em Inglês | MEDLINE | ID: mdl-34073062

RESUMO

Imaging of lymphoma is based on the use of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) and/or contrast-enhanced CT, but concerns have been raised regarding radiation exposure related to imaging scans in patients with cancer, and its association with increased risk of secondary tumors in patients with lymphoma has been established. To date, lymphoproliferative disorders are among the most common indications to perform whole-body magnetic resonance imaging (MRI). Whole-body MRI is superior to contrast-enhanced CT for staging the disease, also being less dependent on histology if compared to 18F-FDG-PET/CT. As well, it does not require exposure to ionizing radiation and could be used for the surveillance of lymphoma. The current role of whole-body MRI in the diagnostic workup in lymphoma is examined in the present review along with the diagnostic performance in staging, response assessment and surveillance of different lymphoma subtypes.

13.
Cancers (Basel) ; 13(9)2021 Apr 28.
Artigo em Inglês | MEDLINE | ID: mdl-33925250

RESUMO

BACKGROUND: Structured reporting (SR) in oncologic imaging is becoming necessary and has recently been recognized by major scientific societies. The aim of this study was to build MRI-based structured reports for rectal cancer (RC) staging and restaging in order to provide clinicians all critical tumor information. MATERIALS AND METHODS: A panel of radiologist experts in abdominal imaging, called the members of the Italian Society of Medical and Interventional Radiology, was established. The modified Delphi process was used to build the SR and to assess the level of agreement in all sections. The Cronbach's alpha (Cα) correlation coefficient was used to assess the internal consistency of each section and to measure the quality analysis according to the average inter-item correlation. The intraclass correlation coefficient (ICC) was also evaluated. RESULTS: After the second Delphi round of the SR RC staging, the panelists' single scores and sum of scores were 3.8 (range 2-4) and 169, and the SR RC restaging panelists' single scores and sum of scores were 3.7 (range 2-4) and 148, respectively. The Cα correlation coefficient was 0.79 for SR staging and 0.81 for SR restaging. The ICCs for the SR RC staging and restaging were 0.78 (p < 0.01) and 0.82 (p < 0.01), respectively. The final SR version was built and included 53 items for RC staging and 50 items for RC restaging. CONCLUSIONS: The final version of the structured reports of MRI-based RC staging and restaging should be a helpful and promising tool for clinicians in managing cancer patients properly. Structured reports collect all Patient Clinical Data, Clinical Evaluations and relevant key findings of Rectal Cancer, both in staging and restaging, and can facilitate clinical decision-making.

14.
Sensors (Basel) ; 21(1)2020 Dec 26.
Artigo em Inglês | MEDLINE | ID: mdl-33375337

RESUMO

We propose a methodology to verify applications developed following programming patterns inspired by natural language that interact with physical environments and run on resource-constrained interconnected devices. Natural language patterns allow for the reduction of intermediate abstraction layers to map physical domain concepts into executable code avoiding the recourse to ontologies, which would need to be shared, kept up to date, and synchronized across a set of devices. Moreover, the computational paradigm we use for effective distributed execution of symbolic code on resource-constrained devices encourages the adoption of such patterns. The methodology is supported by a rule-based system that permits runtime verification of Software Under Test (SUT) on board the target devices through automated oracle and test case generation. Moreover, verification extends from syntactic and semantic checks to the evaluation of the effects of SUT execution on target hardware. Additionally, by exploiting rules tying sensors and actuators to physical quantities, the effects of code execution on the physical environment can be verified. The system is also able to build test code to highlight software issues that may arise during repeated SUT execution on the target hardware.

15.
PLoS One ; 15(9): e0237984, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32881882

RESUMO

BACKGROUND: Human immunodeficiency virus (HIV) infected individuals may have osteoporosis. We aimed to evaluate the bone mineral density (BMD) in naïve antiretroviral (ARV) treated HIV positive patients comparing native Italian group (ItG) to a Migrants group (MiG) upon arrival in Italy. METHODS: We conducted a cross-sectional study on 83 HIV patients less than 50 years old. We used the dual-energy X-ray absorptiometry (DXA) within six months from the HIV diagnosis. Participants were categorized as having low BMD if the femoral neck or total lumbar spine Z-score was- 2 or less. RESULTS: MiG showed low BMD more often than ItG (37.5% vs.13.6%), especially for the female gender (16.7% vs. 0.0%). A low CD4 rate (<200 cells/µl) was most often detected in MiG than ItG. In particular, we found most often male Italians with abnormal CD4 than male migrants (67.8% vs. 33.3%) and vice versa for females (30.5% vs. 66.7%). We found an abnormal bone mineral density at the lumbar site. Low BMD at the lumbar site was more frequently observed in female migrants than female Italians. Both male and female migrants had a Z-score value significantly lower than male and female Italians, respectively. By logistic regression low vitamin-D level was positively correlated to low BMD in ItG only. All data were verified and validated using a triple code identifier. CONCLUSIONS: Both DXA and vitamin-D evaluation should be offered after the diagnosis of HIV infection. Lumbar site low BMD is an initial condition of bone loss in HIV young patients, especially in female migrants. Vitamin D levels and supplementation may be considered after HIV diagnosis independently of age to improve bone health. HIGHLIGHTS: This study evaluates the frequency of bone mineral density in HIV positive patients naive to antiretroviral therapy. It compares the density of the native Italian population with that of HIV Migrants upon arrival in Italy. The results show that HIV positive migrants, even if younger than 50 years of age, are at risk for osteoporosis, especially if they are female.


Assuntos
Densidade Óssea/fisiologia , Infecções por HIV/diagnóstico , Absorciometria de Fóton , Adulto , Antirretrovirais/uso terapêutico , Contagem de Linfócito CD4 , Estudos Transversais , Feminino , Infecções por HIV/tratamento farmacológico , Humanos , Itália , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Osteoporose/etnologia , Osteoporose/etiologia , Osteoporose/patologia , Fatores Sexuais , Migrantes , Vitamina D/sangue
16.
Artigo em Inglês | MEDLINE | ID: mdl-32994802

RESUMO

BACKGROUND: TAS-102 is an oral monotherapy, combining trifluridine and tipiracil hydrochloride, indicated for the treatment of pretreated metastatic colorectal cancer (mCRC). The aim of this real-life study is to evaluate the efficacy and safety of TAS-102 in heavily pretreated elderly patients with mCRC whose disease has progressed with standard therapies. METHODS: In this retrospective observational study, we enrolled 50 elderly patients >70 years of age (median age 78 years) with a diagnosis of mCRC who were previously treated or were not considered candidates for treatment with other available therapies. Patients aged >70 years with advanced colorectal cancer and with an ECOG performance status of grade 0 (n=18) or grade 1 (n=32) were included. Overall survival and progression-free survival were the primary endpoints, whereas objective response rate, tolerability, and quality of life were the secondary endpoints. RESULTS: Treatment with TAS-102 appeared to be well tolerated and side effects were generally mild, achieving disease control and a benefit on quality of life. The median overall survival was 6.7 (95% CI 5.7-11.3) and the median progression-free survival was 2.1 months (95% CI 1.2-3.2), estimated using the Kaplan-Meier method. CONCLUSION: TAS-102 represents a manageable and effective therapeutic opportunity and appeared to be well tolerated with generally mild side effects in elderly patients with mCRC who were heavily pretreated with standard therapies.

17.
Clin Imaging ; 68: 169-174, 2020 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32836213

RESUMO

OBJECTIVE: The aim of this study was to retrospectively analyze the outcome of LR-3 and LR-4 without arterial phase hyperenhancement (APHE), and identify which features could predict LR-5 progression on serial Gd-EOB-DTPA-enhanced MRI follow-up. METHODS: Forty-nine cirrhotic patients with 55 LR-3 and 19 LR-4 without APHE were evaluated. Observations were classified as decreased, stable or increased in category at follow-up. Observation size and LI-RADS major and ancillary features were evaluated. RESULTS: Seventeen/fifty-five (31%) LR-3 and 8/19 (42%) LR-4 progressed to LR-5 at follow-up. Baseline LI-RADS major and ancillary features were not significantly different among LR-3 and LR-4. A diameter ≥ 10 mm significantly increased LR-5 progression risk of LR-3 (OR = 6.07; 95% CI: 0.12; 60.28]; P < .001). LR-4 with a diameter ≥ 10 mm more likely become LR-5 at follow-up (OR = 8.95; 95% CI: 0.73; 111.8; P = .083]). CONCLUSION: LR-3 and LR-4 without APHE were often downgraded or remained stable in category on Gd-EOB-DTPA-enhanced MRI follow-up.


Assuntos
Carcinoma Hepatocelular , Neoplasias Hepáticas , Meios de Contraste , Seguimentos , Gadolínio DTPA , Humanos , Imageamento por Ressonância Magnética , Estudos Retrospectivos
18.
Gastroenterol Res Pract ; 2019: 2350948, 2019.
Artigo em Inglês | MEDLINE | ID: mdl-31582969

RESUMO

BACKGROUND: To compare sensitivity of unenhanced computed tomography (CT) and contrast-enhanced CT for the identification of the etiology of bowel obstruction. MATERIALS AND METHODS: We retrospectively evaluated abdominal CT scans of patients operated for bowel obstruction from March 2013 to October 2017. Two radiologists evaluated CT scans before and after contrast agent in two reading sessions. Then, we calculated sensitivity of CT in the diagnosis of bowel obstruction and determined in which cases the etiology of bowel obstruction was detected on both unenhanced and enhanced CT or on enhanced CT only. The reference standard was defined as the final diagnosis obtained after surgery. RESULTS: Eighteen patients (mean age 72 ± 15 years, age range 37-88 years) were included in the study. Sensitivity of unenhanced CT and enhanced CT was not significantly different in either small bowel obstruction (64%, 7/11 patients vs. 73%, 8/11 patients; P = 0.6547) or large bowel obstruction (71%, 5/7 patients vs. 100%, 7/7 patients; P = 0.1410). Adhesions were identified on unenhanced CT as the etiology of small bowel obstruction in 80% (4/5) of patients. Tumors were identified on unenhanced CT as the etiology of large bowel obstruction in 67% (4/6) of patients. CONCLUSION: In the diagnosis of small bowel obstruction due to adhesions with normal bowel wall thickening and when a neoplasm is identified as the etiology of large bowel obstruction on unenhanced CT, an intravenous contrast agent may be avoided for the identification of the etiology. In remaining cases, contrast agent is still recommended.

20.
Radiol Med ; 124(10): 935-945, 2019 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31187354

RESUMO

The purpose of this article is to provide an up-to-date overview on imaging of paediatric vascular soft tissue masses, including both neoplastic and non-neoplastic lesions. We describe the-often challenging-imaging diagnosis-mainly performed by ultrasound (and secondarily by MRI) and differential diagnosis of vascular soft tissue lesions in children. We underline how important it is to determine whether a vascular anomaly has a regional vascular origin, or if there are other entities, ranging from benign to malignant lesions, which have flow-signal or blood degradation products. Even though clinical examination and patient's history are the first and indispensable steps in the initial diagnosis, the role of imaging is crucial, not only to determine whether a mass represents a true tumour/pseudo-tumour, but also to achieve a more correct diagnosis and determine the extension of the tumour/pseudo-tumour and its relation with the nearby anatomic structures.


Assuntos
Neoplasias de Tecidos Moles/diagnóstico por imagem , Ultrassonografia/métodos , Neoplasias Vasculares/diagnóstico por imagem , Criança , Diagnóstico Diferencial , Humanos , Imageamento por Ressonância Magnética
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