Arterial spin labeling imaging correlates with the angiographic and clinical vascularity of vestibular schwannomas

We examined whether HVSs can be predicted by using arterial spin labeling (ASL) imaging.MethodsA total of 103 patients with VSs underwent ASL imaging and digital subtraction angiography (DSA) before surgery. Regional cerebral blood flow (CBF) of gray matter and regional tumor blood flow (TBF) were calculated from ASL imaging, and we defined the ratio of TBF to CBF as the relative TBF (rTBF = TBF/CBF). Angiographic vascularity was evaluated by DSA, and clinical vascularity was evaluated by the degree of intraoperative tumor bleeding. Based on the angiographic and clinical vascularity, the VSs were divided into two categories: HVS and non-HVS. We compared rTBF with angiographic and clinical vascularities, retrospectively.ResultsThe mean rTBFs of angiographic non-HVSs and HVSs were 1.29 and 2.58, respectively (p 
Source: Neuroradiology - Category: Radiology Source Type: research

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Abstract Evaluation and management of acute lower gastrointestinal bleeding focus on etiologies originating distally to the ligament of Treitz. Diverticular disease is the most common source, accounting for 40% of cases. Hemorrhoids, angiodysplasia, infectious colitis, and inflammatory bowel disease are other common sources. Initial evaluation should focus on obtaining the patient's history and performing a physical examination, including evaluation of hemodynamic status. Subsequent evaluation should be based on the suspected etiology. Most patients should undergo colonoscopy for diagnostic and therapeutic purpose...
Source: American Family Physician - Category: Primary Care Authors: Tags: Am Fam Physician Source Type: research
AbstractPurposeThe purpose of this study was to determine whether the measured size of active gastrointestinal hemorrhage was useful in predicting subsequent positive findings at catheter angiography.Materials and methodsThis was a single-institution retrospective study consisting of 32 patients with computed tomography angiography (CTA) positive for gastrointestinal bleeding who went on to receive catheter angiography. Each CTA was reviewed, with axial measurements of the anterior –posterior and transverse dimensions of the largest foci of hemorrhage recorded. Volumetric analysis was used to measure the volume of he...
Source: Abdominal Imaging - Category: Radiology Source Type: research
Here is a 3-minute algorithm for the management of acute pulmonary embolism. Just need to ask 3 questions. Caution: User discretion is advised as it could be tainted with reasonably acceptable levels of non-scientific content. Some of the critical  questions need to be answered What is hemodynamic stability? It is purely based on clinical signs and judgment.(One need to be doubly sure to rule out hypovolemia and sepsis-related hypotension) Is RV dysfunction equivalent to hemodynamic stability? No, it is not. Clinical instability must be associated.( The dogma is,  if the patient is stable even if there is signif...
Source: Dr.S.Venkatesan MD - Category: Cardiology Authors: Tags: Uncategorized 2020 acute pulmonary embolism guidlines 60/60 sign acc aha acc esc guideline for pulmonary embolism esc 2019 pe guidelines guidelines for pe pulmonary embolism 2020 latest pe guidline latest review article pulmoanry embolism Source Type: blogs
Authors: Takeda A, Koike W, Tsuge S, Shibata M, Shinone S, Nakamura H Abstract The feasibility of emergency uterine artery embolisation (UAE) after diagnosis by three-dimensional computed tomographic angiography (CTA) for conservative management of intractable haemorrhage associated with laparoscopic-assisted myomectomy (LAM) was evaluated. In 764 women undergoing LAM, 12 cases were managed by emergency UAE to achieve haemostasis after evaluation by CTA. In two cases, bleeding was diagnosed in the postoperative period, while, in another 10 cases, bleeding was identified at the near-end stage of the surgical procedu...
Source: Journal of Obstetrics and Gynaecology - Category: OBGYN Tags: J Obstet Gynaecol Source Type: research
We present the first case with history of repaired coarctation with multiple spontaneous intercostal artery aneurysmal rupture.
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Source Type: research
We present the first case with history of repaired coarctation with multiple spontaneous intercostal artery aneurysmal rupture. PMID: 32035043 [PubMed - as supplied by publisher]
Source: The Annals of Thoracic Surgery - Category: Cardiovascular & Thoracic Surgery Authors: Tags: Ann Thorac Surg Source Type: research
This study aimed to analyze inflammatory biomarkers and thromboelastography in cirrhotic patients with portal vein thrombosis. Methods A total of 385 consecutive cirrhotic patients with gastroesophageal varices were prospectively enrolled between 1 December 2016, and 31 August 2017. Of these, 231 were eligible for analysis and were divided into portal vein thrombosis (n = 103) and non-portal vein thrombosis (n = 128) groups based on computerized tomography angiography findings. Results Patients with portal vein thrombosis generally had higher Child-Pugh scores than those without portal vein thrombosis (6.38 ± ...
Source: European Journal of Gastroenterology and Hepatology - Category: Gastroenterology Tags: Original Articles: Hepatology Source Type: research
ConclusionTransarterial embolization is safe and effective in addressing recurrent hemarthrosis in patients with bleeding diatheses with or without a history of arthroplasty of the affected joint.
Source: CardioVascular and Interventional Radiology - Category: Radiology Source Type: research
We report a case of superficial siderosis (SS) of the central nervous system that developed approximately 8 years after the treatment of cerebral arteriovenous malformation (AVM). A 17-year-old boy was diagnosed with cerebral AVM in the right frontal lobe, which was treated with embolization and radiation therapy. Radiation-induced encephalopathy occurred 5 years later, and the lesion was resected. Although the patient could walk with a cane following the surgery and rehabilitation, he exhibited complete paresis of the left upper extremity. In the course of the next 9 years, he showed cognitive function decl...
Source: Interdisciplinary Neurosurgery - Category: Neurosurgery Source Type: research
AbstractPurposeTo compare CT angiography (CTA) and tagged red blood cell (RBC) scan as a function of time from these initial imaging studies to subsequent conventional angiography and catheter-directed embolization in patients with gastrointestinal (GI) bleeding.MethodsAn IRB-approved retrospective study was conducted of 35 consecutive patients diagnosed with GI bleeding that received angiography for planned catheter-directed embolization. Of these patients, 20 were diagnosed with bleeding using a tagged RBC scan, whereas 15 were diagnosed using CTA. The lengths of time between diagnostic study order to study completion, d...
Source: Abdominal Imaging - Category: Radiology Source Type: research
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