scholarly journals Digital Subtraction CT Angiography for Detection of Intracranial Aneurysms: Comparison with Three-dimensional Digital Subtraction Angiography

Radiology ◽  
2012 ◽  
Vol 262 (2) ◽  
pp. 605-612 ◽  
Author(s):  
Li Lu ◽  
Long Jiang Zhang ◽  
Colin S. Poon ◽  
Sheng Yong Wu ◽  
Chang Sheng Zhou ◽  
...  
Keyword(s):  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Intracranial Aneurysms ◽  
Three Dimensional ◽  
Digital Subtraction

Automated Three-dimensional Volume Rendering of Helical Computed Tomographic Angiography for Aneurysms: An Advanced Application of Neuronavigation Technology

2005 ◽  
Vol 57 (suppl_1) ◽  
pp. 69-77 ◽  
Author(s):  
Lucia Benvenuti ◽  
Salvatore Chibbaro ◽  
Stefano Carnesecchi ◽  
Flavio Pulerà ◽  
Rolando Gagliardi
Keyword(s):  
Digital Subtraction Angiography ◽  
Ct Angiography ◽  
Volume Rendering ◽  
Intracranial Aneurysms ◽  
Surgical Navigation ◽  
Three Dimensional ◽  
Helical Ct ◽  
Data Sets ◽  
Digital Subtraction ◽  
Computed Tomographic

Abstract OBJECTIVE: To introduce the possibility of volume-rendered helical computed tomographic (CT) angiographic data sets by use of Medtronic StealthStation Treon surgical navigation technology (Medtronic Surgical Navigation Technologies, Louisville, CO) and to evaluate the clinical usefulness of the method in planning and performing surgical treatment of intracranial aneurysms. METHODS: Between November 2002 and July 2003, we studied 15 patients with suspected intracranial aneurysms. All patients but two received conventional digital subtraction angiography, which failed to provide the requested information. Helical CT angiography was performed in all patients, and data sets were transferred to the StealthStation system across an electronic network to be automatically postprocessed by use of three-dimensional (3-D) volume rendering. The 3-D volume-rendered images were accurately analyzed to obtain more complete information about the aneurysm and to provide accurate treatment planning. In all patients, the 3-D volume-rendered model was displayed on the screen of the StealthStation system for the duration of the surgical procedure and compared with the intraoperative image. RESULTS: Data sets from CT angiography were automatically postprocessed by the StealthStation in seconds with excellent results, providing us, before and during surgery, with additional information not always available on traditional digital subtraction angiographic investigation. Because of the very short time necessary to complete this process (<5 min to obtain 3-D volume-rendered images), it was possible to perform emergency clipping of the aneurysms in two patients who had been admitted in very compromised neurological conditions. In 12 patients, integrated digital subtraction angiography and automated 3-D volume-rendered images allowed an accurate presurgical evaluation. Furthermore, in all patients on whom surgery was performed, aneurysms were found in the exact location and with the same anatomic features as depicted by the 3-D volume-rendered models. CONCLUSION: Reports in the literature indicate that information gathered by CT angiography with volume rendering shows a significant impact on aneurysm management. The StealthStation system upgraded with the adequate algorithm seems to provide a time- and cost-effective method of performing automated 3-D volume rendering of CT angiography and provides an interesting alternative to the available investigation modalities in case of emergency.

scholarly journals Value of 3D-DSA in the detection of intracranial aneurysms

2021 ◽  
Vol 57 (3) ◽  
pp. 260-268
Author(s):  
Darjan Franjić ◽  
Josip Mašković
Keyword(s):  
Digital Subtraction Angiography ◽  
Intracranial Aneurysms ◽  
Positive Relationship ◽  
Three Dimensional ◽  
Digital Subtraction ◽  
Neck Size ◽  
Aneurysm Neck ◽  
Aneurysm Detection ◽  
Aneurysmal Neck ◽  
Small Aneurysms

Aim: To determine the value of three-dimensional (3D) digital subtraction angiography (DSA) in the detection of intracranial aneurysms and to compare 3D technique with DSA. Materials and Methods: A retrospective analysis of 50 patients with 60 intracranial aneurysms who underwent both conventional DSA and 3D-DSA for the evaluation of intracranial aneurysms was conducted. The presence of aneurysms, detection of aneurysmal neck, size, location, presence of additional and small aneurysms analyzed from the two protocols were compared. Results: Three-dimensional technique detected 54 aneurysms while conventional DSA detected 38 aneurysms. There was no correlation between aneurysm detection and aneurysm neck detection in the two technologies observed, but there was a difference in detection performance depending on the technology used. Three-dimensional technique detected 52 aneurysm necks while conventional DSA detected 24 aneurysm necks. There was a statistically significant and positive relationship between the detected size of the aneurysm using 3D technique and DSA technology. Three-dimensional technique detected 24 additional aneurysms while conventional DSA detected only six additional aneurysms. Conclusions: Three-dimensional technique are more successful in the detection of aneurysms, their necks and small aneurysms in comparison to digital subtraction angiography, but difference is not statistically significant. The size of the aneurysm statistically significant affects the aneurysm neck detection by conventional DSA.

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