scholarly journals The features of computed tomography and digital subtraction angiography images of ruptured cerebral arteriovenous malformation

2021 ◽  
Vol 8 (2) ◽  
pp. 105-115
Author(s):  
Van Tuan Nguyen ◽  
◽  
Anh Tuan Tran ◽  
Nguyen Quyen Le ◽  
Thi Huong Nguyen ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Arteriovenous Malformation ◽  
Digital Subtraction Angiography ◽  
Cerebral Arteriovenous Malformation ◽  
Digital Subtraction

Detection of Predictors of Hemorrhage in Patients with Cerebral Arteriovenous Malformation by Digital Subtraction Angiography

2019 ◽  
Vol 8 (2) ◽  
pp. 87-92
Author(s):  
Fazlul Haque ◽  
Shariful Islam ◽  
Monzurul Haque ◽  
Shafiul Alam ◽  
Raziul Haque
Keyword(s):  
Arteriovenous Malformation ◽  
Digital Subtraction Angiography ◽  
Venous Drainage ◽  
High Flow ◽  
Cerebral Arteriovenous Malformation ◽  
P Value ◽  
Digital Subtraction ◽  
College Hospital ◽  
Multiple Imaging ◽  
Arterial Feeder

Background: Cerebral arteriovenous malformation (AVM) is a complex tangled of dilated blood vessels in which arteries flow directly into veins without capillaries. The main cause of death in patients with cerebral AVM is intraparenchymal hemorrhage. There are multiple imaging tools that can detect the predictors of hemorrhage in cerebralarteriovenous malformation. But nowadays digital subtraction angiography (DSA) is playing a wonderful role to detect these predictors. Objectives: To detect the common predicting factors of hemorrhage from in brain by DSA. Methodology:This observational cross-sectional study was carried out in the department of Neurosurgery, Dhaka Medical College Hospital and study period was from October, 2014 to March, 2016. 76 patients of hemorrhagic stroke with clinical and radiological (CT scan) suspicion of ruptured cerebral AVM were selected by non-probability purposive sampling technique. After that enrolled patients were scrutinized according to selection criteria. Finally selected 50 patients who underwent DSA and were positive for AVM were included in this study. All the included patients’ demographic, clinical and DSA profile were recorded in pre-structured data collection sheet. All the data were compiled, edited and plotted in tabular and figure forms. Data analysis was done by chi-square test. P value was determined significant when it was <0.05. Results: In angiographic presentation, maximum cases were found deep seated (72%), small sized (<3 cm) (70%), having compact type of nidus (58%), having superficial arterial feeder (62%), having high flow draining vein (70%), having deep venous drainage (56%) and single draining vein (78%). Associated aneurysm and venous ectasia were 12% and 4% respectively. The statistically significant predictors were deep location (P=0.036) and superficial arterial feeder (P=0.03) between male and female subjects. Conclusion: Our results showed that small sized, deep-seated Cerebral arteriovenous malformation, having high flow draining vein, having deep venous drainage and single number of draining vein are the possible causes of hemorrhage. Lesions that have associated aneurysms have a risk of bleeding. Bang. J Neurosurgery 2019; 8(2): 87-92

scholarly journals Time resolved computed tomography angiography in the evaluation of brain arteriovenous malformation: a feasibility study

2017 ◽  
Vol 31 (3) ◽  
pp. 230-234 ◽  
Author(s):  
Rupinder Singh ◽  
Vivek Gupta ◽  
Chirag Ahuja ◽  
Niranjan Khandelwal
Keyword(s):  
Computed Tomography ◽  
Arteriovenous Malformation ◽  
Digital Subtraction Angiography ◽  
Computed Tomography Angiography ◽  
Venous Drainage ◽  
Complete Agreement ◽  
Digital Subtraction ◽  
Time Resolved ◽  
Non Invasive

Background and purpose Digital subtraction angiography is the current gold standard for diagnosing as well as the follow-up of cerebral arteriovenous malformations. However, as it is invasive, relatively expensive and time-consuming, a non-invasive alternative is of interest. We aimed to evaluate the feasibility of time resolved computed tomography angiography (TR-CTA) in a series of five diagnosed cranial arteriovenous malformation patients, demonstrated by conventional digital subtraction angiography with respect to acquisition, depiction of angiographic phases and radiation exposure. Materials and methods Five patients demonstrating a cranial arteriovenous malformation on digital subtraction angiography were studied with TR-CTA. The TR-CTA imaging was done by using a 128-detector computed tomography scanner. Digital subtraction angiography and TR-CTA studies were independently read by two blinded observers, by using a standardised scoring sheet. TR-CTA results were analysed with digital subtraction angiography as the criterion standard. Results TR-CTA generated comparable angiographic phases. In all five cases, there was complete agreement between digital subtraction angiography and TR-CTA regarding the size, arterial feeders, nidal morphology and venous drainage of the arteriovenous malformation. Conclusions TR-CTA imaging as a technique is feasible, providing images with good temporal and spatial resolution at an acceptable radiation dose. It appears to be a promising non-invasive adjunct to digital subtraction angiography.

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