scholarly journals Complications of Portal Vein Embolization: Evaluation on Cross-Sectional Imaging

2015 ◽  
Vol 16 (5) ◽  
pp. 1079 ◽  
Author(s):  
Yoo Kyeong Yeom ◽  
Ji Hoon Shin
Keyword(s):  
Portal Vein ◽  
Portal Vein Embolization ◽  
Cross Sectional ◽  
Cross Sectional Imaging ◽  
Sectional Imaging

scholarly journals Hepatic Necrosis after Trans-Arterial Embolization of Metastatic Neuroendocrine Tumour

2020 ◽  
Author(s):  
Sarah Micallef ◽  
Kelvin Cortis ◽  
Claude Magri
Keyword(s):  
Portal Vein ◽  
Neuroendocrine Tumour ◽  
Arterial Embolization ◽  
Hepatic Necrosis ◽  
Selective Internal Radiotherapy ◽  
Cross Sectional ◽  
Internal Radiotherapy ◽  
Vein Thrombosis ◽  
Cross Sectional Imaging ◽  
Sectional Imaging

Liver metastases from neuroendocrine tumours (NETs) are usually seen on cross-sectional imaging at presentation. In such cases, curative surgical resection is usually not possible given that most patients have bilobar disease. Various locoregional approaches are now widely available that enable local control of disease and management of systemic symptoms. These include trans-arterial embolization (TAE), trans-arterial chemoembolization (TACE), selective internal radiotherapy and thermal ablation. We describe a rare case of hepatic necrosis after TAE in a 61-year-old woman with a metastatic NET. Cross-sectional imaging showed extensive necrosis affecting segments VII and VIII of the liver. This occurred secondary to thrombosis in the portal vein branches to these segments, confirmed on a Doppler ultrasound scan. The mechanism of portal vein thrombosis after TAE could be due to the presence of occult arterioportal anastomoses. These allow transit of the embolizing agents into the portal vein branches supplying the treated segments and subsequent thrombosis.

Clinical and cross-sectional imaging features of spontaneous pancreatic pseudocyst-portal vein fistula

2017 ◽  
Vol 44 ◽  
pp. 22-26 ◽  
Author(s):  
Francesco Alessandrino ◽  
Corinne Strickland ◽  
Amirkasra Mojtahed ◽  
Steven C. Eberhardt ◽  
Koenraad J. Mortele
Keyword(s):  
Portal Vein ◽  
Pancreatic Pseudocyst ◽  
Imaging Features ◽  
Cross Sectional ◽  
Cross Sectional Imaging ◽  
Sectional Imaging

scholarly journals Abdominal cross-sectional imaging of the associating liver partition and portal vein ligation for staged hepatectomy procedure

2017 ◽  
Vol 9 (16) ◽  
pp. 733 ◽  
Author(s):  
Michele Zerial ◽  
Dario Lorenzin ◽  
Andrea Risaliti ◽  
Chiara Zuiani ◽  
Rossano Girometti
Keyword(s):  
Portal Vein ◽  
Portal Vein Ligation ◽  
Cross Sectional ◽  
Cross Sectional Imaging ◽  
Sectional Imaging ◽  
Staged Hepatectomy

State-of-the-art aortic imaging: Part II - applications in transcatheter aortic valve replacement and endovascular aortic aneurysm repair

VASA ◽  
2014 ◽  
Vol 43 (1) ◽  
pp. 6-26 ◽  
Author(s):  
Fabian Rengier ◽  
Philipp Geisbüsch ◽  
Paul Schoenhagen ◽  
Matthias Müller-Eschner ◽  
Rolf Vosshenrich ◽  
...  
Keyword(s):  
Aortic Valve ◽  
Transcatheter Aortic Valve Replacement ◽  
Surgical Repair ◽  
Imaging Modality ◽  
Open Surgical Repair ◽  
Cross Sectional ◽  
Transcatheter Aortic Valve ◽  
Cross Sectional Imaging ◽  
Sectional Imaging

Transcatheter aortic valve replacement (TAVR) as well as thoracic and abdominal endovascular aortic repair (TEVAR and EVAR) rely on accurate pre- and postprocedural imaging. This review article discusses the application of imaging, including preprocedural assessment and measurements as well as postprocedural imaging of complications. Furthermore, the exciting perspective of computational fluid dynamics (CFD) based on cross-sectional imaging is presented. TAVR is a minimally invasive alternative for treatment of aortic valve stenosis in patients with high age and multiple comorbidities who cannot undergo traditional open surgical repair. Given the lack of direct visualization during the procedure, pre- and peri-procedural imaging forms an essential part of the intervention. Computed tomography angiography (CTA) is the imaging modality of choice for preprocedural planning. Routine postprocedural follow-up is performed by echocardiography to confirm treatment success and detect complications. EVAR and TEVAR are minimally invasive alternatives to open surgical repair of aortic pathologies. CTA constitutes the preferred imaging modality for both preoperative planning and postoperative follow-up including detection of endoleaks. Magnetic resonance imaging is an excellent alternative to CT for postoperative follow-up, and is especially beneficial for younger patients given the lack of radiation. Ultrasound is applied in screening and postoperative follow-up of abdominal aortic aneurysms, but cross-sectional imaging is required once abnormalities are detected. Contrast-enhanced ultrasound may be as sensitive as CTA in detecting endoleaks.

The role of pre-biopsy mpMRI in lymph node staging for prostate cancer

2021 ◽  
pp. 039156032110168
Author(s):  
Nassib Abou Heidar ◽  
Robert El-Doueihi ◽  
Ali Merhe ◽  
Paul Ramia ◽  
Gerges Bustros ◽  
...  
Keyword(s):  
Prostate Cancer ◽  
Lymph Node ◽  
High Risk ◽  
Gleason Score ◽  
Gold Standard ◽  
Cross Sectional ◽  
Significant Difference ◽  
Cross Sectional Imaging ◽  
Sectional Imaging ◽  
Kappa Agreement

Introduction: Prostate cancer (PCa) staging is an integral part in the management of prostate cancer. The gold standard for diagnosing lymph node invasion is a surgical lymphadenectomy, with no superior imaging modality available at the clinician’s disposal. Our aim in this study is to identify if a pre-biopsy multiparametric MRI (mpMRI) can provide enough information about pelvic lymph nodes in intermediate and high risk PCa patients, and whether it can substitute further cross sectional imaging (CSI) modalities of the abdomen and pelvis in these risk categories. Methods: Patients with intermediate and high risk prostate cancer were collected between January 2015 and June 2019, while excluding patients who did not undergo a pre-biopsy mpMRI or a CSI. Date regarding biopsy result, PSA, MRI results, CSI imaging results were collected. Using Statistical Package for the Social Sciences (SPSS) version 24.0, statistical analysis was conducted using the Cohen’s Kappa agreement for comparison of mpMRI with CSI. McNemar’s test and receiver operator curve (ROC) curve were used for comparison of sensitivity of both tests when comparing to the gold standard of lymphadenectomy. Results: A total of 143 patients fit the inclusion criteria. We further stratified our patients into according to PSA level and Gleason score. Overall, agreement between mpMRI and all CSI was 0.857. When stratifying patients based on Gleason score and PSA, the higher the grade or PSA, the higher agreement between mpMRI and CSI. The sensitivity of mpMRI (73.7%) is similar to CSI (68.4%). When comparing CSI sensitivity to that of mpMRI, no significant difference was present by utilizing the McNemar test and very similar receiver operating characteristic curve. Conclusion: A pre-biopsy mpMRI can potentially substitute further cross sectional imaging in our cohort of patients. However, larger prospective studies are needed to confirm our findings.

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