Republished: Novel use of 4D-CTA in imaging of intranidal aneurysms in an acutely ruptured arteriovenous malformation: is this the way forward?

2015 ◽  
Vol 8 (9) ◽  
pp. e36-e36 ◽  
Author(s):  
Arun Chandran ◽  
Mark Radon ◽  
Shubhabrata Biswas ◽  
Kumar Das ◽  
Mani Puthuran ◽  
...  
Keyword(s):  
Arteriovenous Malformation ◽  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Intracranial Hemorrhage ◽  
Comprehensive Evaluation ◽  
Flow Dynamics ◽  
Digital Subtraction ◽  
Time Resolved ◽  
First Report ◽  
Angiography Catheter

Ruptured arteriovenous malformation (AVM) is a frequent cause of intracranial hemorrhage. The presence of associated aneurysms, especially intranidal aneurysms, is considered to increase the risk of re-hemorrhage. We present two cases where an intranidal aneurysm was demonstrated on four-dimensional CT angiography (time-resolved CT angiography) (4D-CTA). These features were confirmed by digital subtraction angiography (catheter arterial angiogram). This is the first report of an intranidal aneurysm demonstrated by 4D-CTA. 4D-CTA can offer a comprehensive evaluation of the angioarchitecture and flow dynamics of an AVM for appropriate classification and management.

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.

Comparison Between Computed Tomography Angiography and Digital Subtraction Angiography in Critical Lower Limb Ischemia

2019 ◽  
Vol 15 (5) ◽  
pp. 496-503 ◽  
Author(s):  
Hesham Ebrahim Ahmed Al-rudaini ◽  
Ping Han ◽  
Huimin Liang
Keyword(s):  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Lower Limb ◽  
Limb Ischemia ◽  
Definitive Treatment ◽  
Digital Subtraction ◽  
Arterial Tree ◽  
Lower Limb Ischemia ◽  
Significant Difference ◽  
Peripheral Arterial

Background:CT Angiography (CTA) of aortoiliac and lower extremity arteries is a relatively recent innovation of CT imaging that has changed after the introduction of multi-detector row scanners.Objective:The study aimed to evaluate the diagnostic accuracy of Multidetector Computed Tomographic Angiography (MDCTA) in the assessment of arterial tree in patients with Peripheral Arterial Occlusive Disease (PAOD), as compared to Digital Subtraction Angiography (DSA).Methods:A single-center nonrandomized prospective study was conducted on 50 patients complaining of peripheral arterial disease (chronic stage) from February 2017 to October 2017. All the patients were exposed to DSA and CTA prior to definitive treatment. The images were then analyzed using maximum intensity projection, volume-rendered, and curved multiplane reformation techniques.Results:All the patients involved in this study were susceptible according to their clinical presentation. The statistical analysis exposed a highly significant difference between CTA and DSA in the assessment of stenosis at the level of Femoropopliteal segment (P<0.01), while for infrapopliteal segment, there was no statistically significant difference between CTA and DSA having 8% versus 14% insignificant stenosis and 62% versus 47% significant stenosis in CTA and DSA, respectively. The overall accuracy of CT angiography in the femoropopliteal segments was 95.20% while in the infrapopliteal segment it was 94.5%.Conclusion:Multidetector CT angiography was found to be a reliable alternative mean for pathoanatomical description of the arterial lesions in critical lower limb ischemia and its subsequent management in comparison to digital subtraction angiography.

scholarly journals Aortoiliac and Lower Extremity Arteries Assessed with 16–Detector Row CT Angiography: Prospective Comparison with Digital Subtraction Angiography

Radiology ◽  
2005 ◽  
Vol 236 (3) ◽  
pp. 1083-1093 ◽  
Author(s):  
Jürgen K. Willmann ◽  
Bernhard Baumert ◽  
Thomas Schertler ◽  
Simon Wildermuth ◽  
Thomas Pfammatter ◽  
...  
Keyword(s):  
Lower Extremity ◽  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Digital Subtraction ◽  
Prospective Comparison

Correlation between CT angiography and digital subtraction angiography in acute ischemic strokes

2021 ◽  
Vol 200 ◽  
pp. 106399
Author(s):  
Su Jin Lee ◽  
Belinda Liu ◽  
Neil Rane ◽  
Peter Mitchell ◽  
Richard Dowling ◽  
...  
Keyword(s):  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Digital Subtraction
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