Detection and evaluation of intracranial aneurysms with 16-row multislice CT angiography

Diagnostic Value Of 64-slice Cta In Detection Of Intracranial Aneurysm In Patients With Sah And Comparison Of The Cta Results With 2d-dsa And Intraoparetaive Findings

“…Numerous studies that compare the diagnostic efficacy of multi-slice CTA with DSA have been published. The reported sensitivities of 4-slice CTA vary in the range of 81-100%, whereas the reported sensitivities of 16-and 64-slice CTA vary in the range of 92-100% (8,(15)(16)(17)(18)(19)(20)(21)(22)(23)(24). The sensitivity of 92.8% found in the present study is consistent with the reported sensitivity values.…”

Detection of Aneurysms by 64-Section Multidetector CT Angiography in Patients Acutely Suspected of Having an Intracranial Aneurysm and Comparison with Digital Subtraction and 3D Rotational Angiography

“…Benefits of an initial, noninvasive work-up include knowledge of the anatomy before endovascular therapy, the ability to avoid the inherent risks of invasive conventional angiography, the ability to decide that a patient should immediately undergo surgery when endovascular therapy is not feasible, and the ability to detect other, less common causes of SAH. [9][10][11][12][13][14][15][16][17] In addition, there is significant potential for MSCTA in cases where aneurysms are of low likelihood, such as SAH in patients after significant trauma or in patients without hemorrhage but with severe headaches and a positive family history of aneurysm. Hence, with the increasing speed, coverage, and resolution of MSCTAs, it has been increasingly accepted for screening of the craniocervical arteries.…”

“…Hence, with the increasing speed, coverage, and resolution of MSCTAs, it has been increasingly accepted for screening of the craniocervical arteries. [9][10][11][12][13][14][15][16][17] Over the past 10 -12 years, the sensitivity and accuracy of CTA in detecting intracranial aneurysms has progressively improved during the evolution from single-section CTA (SS Fig 6. Blisterlike lesion in a 46-year-old man with SAH from a 3.5-mm MCA aneurysm, noted on CTA and 3DRA (asterisk, A). The sessile lesion was noted on the undersurface of the ICA and not noted on CTA 3D-VR (data not shown) or MPR (B) views.…”

“…Recent literature has demonstrated a high accuracy of detecting aneurysms more than 3-4 mm in size using 4-section (4MSCTA) and 16-section (16MSCTA) in the ranges of 92%-100%, but with a much lower sensitivity in detecting smaller aneurysms (Ͻ3-4 mm), in the range of 74%-84%. [9][10][11][12][13] With the advent of newer, faster multidetector CT scanners, there can be thinner collimation, improved zaxis resolution, and contrast bolus timing, potentially leading to improved detection of these smaller aneurysms. Because there has been little literature comparing combined DSA/ 3DRA with 64-section MSCTA (64MSCTA), our purpose was to evaluate the accuracy of 64MSCTA in aneurysm detection with special attention to smaller (Ͻ4 mm) aneurysms.…”

Rebleeding from Cerebral Aneurysms during 3DCT Angiography

“…Computed Tomographic Angiography (CTA) is a non-invasive test with high diagnostic performance that enables the detection of cerebrovascular lesions responsible for subarachnoid hemorrhage and is relatively simple compared with angiography, provided the patient has no restrictions regarding the use of contrast agent [2][3][4]. Although CTA is widely used, we have encountered cases in which rebleeding occurred from ruptured cerebral aneurysms during CTA.…”