Non-invasive CT angiography effectively detects cerebral aneurysms and should be considered for first-line imaging.
CT angiography should be the first-line imaging technique for the noninvasive evaluation of aneurysms, according to a study published in the journal Radiology.
Researchers from China undertook a study to assess the accuracy of 320-detector row CT angiography for detection of cerebral aneurysms compared with 3D digital subtraction angiography (DSA). A total of 282 patients (138 men, 144 women) were assessed.
Mean age was 58 years. The patients underwent CT angiography with 320-detector row volumetric CT scanner and 3D rotational DSA. The researchers evaluated sensitivity, specificity, and accuracy of nonsubtracted and subtracted volumetric CT angiography for depiction of aneurysms.
Results showed that 3D DAS detected 239 cerebral aneurysms among 198 patients. The CT angiography showed 231 of the aneurysms (96.7 percent). The researchers noted that aneurysms that were missed were generally proximal to bone tissue. Sensitivity, specificity, and accuracy of subtracted volumetric CT angiography for depicting aneurysms were 99.2 percent, 100 percent, and 99.4 percent, respectively, on a per-aneurysm basis.
“Subtracted 320–detector row volumetric CT angiography provides excellent sensitivity for detection of cerebral aneurysms and should be the first-line imaging technique for the noninvasive evaluation of aneurysms,” the authors wrote.
Study with CT Data Suggests Women with PE Have More Than Triple the One-Year Mortality Rate than Men
April 3rd 2025After a multivariable assessment including age and comorbidities, women with pulmonary embolism (PE) had a 48 percent higher risk of one-year mortality than men with PE, according to a new study involving over 33,000 patients.
The Reading Room: Racial and Ethnic Minorities, Cancer Screenings, and COVID-19
November 3rd 2020In this podcast episode, Dr. Shalom Kalnicki, from Montefiore and Albert Einstein College of Medicine, discusses the disparities minority patients face with cancer screenings and what can be done to increase access during the pandemic.
Predicting Diabetes on CT Scans: What New Research Reveals with Pancreatic Imaging Biomarkers
March 25th 2025Attenuation-based biomarkers on computed tomography (CT) scans demonstrated a 93 percent interclass correlation coefficient (ICC) agreement across three pancreatic segmentation algorithms for predicting diabetes, according to a study involving over 9,700 patients.
Can Photon-Counting CT be an Alternative to MRI for Assessing Liver Fat Fraction?
March 21st 2025Photon-counting CT fat fraction evaluation offered a maximum sensitivity of 81 percent for detecting steatosis and had a 91 percent ICC agreement with MRI proton density fat fraction assessment, according to new prospective research.