Clinical News: Page 1739

Cardiac CTA incorporates function, motion analysis
By Eric Barnes
Wednesday, November 28 | 3:40 p.m.-3:50 p.m. | SSM03-05 | Room S502ABA 64-detector-row scanner can deliver anatomic as well as functional information if you follow the lead of Johns Hopkins University researchers, who used the same data for CT angiography (CTA) and cardiac function, motion analysis, and myocardial perfusion information.
November 5, 2012
Technologists are quick on the trigger to repeat head scans
By Eric Barnes
Wednesday, November 28 | 11:10 a.m.-11:20 a.m. | SSK16-04 | Room S403BIn a Canadian study, CT technologists rated head CT image quality lower than radiologists when artifacts were present, making them more prone to repeat scans and expose patients to additional radiation.
November 5, 2012
Virtual high-keV images at DECT cut metal artifact
By Eric Barnes
Wednesday, November 28 | 11:10 a.m.-11:20 a.m. | SSK11-05 | Room N230Virtual high-keV images of spine hardware at dual-energy CT (DECT) show less artifact and are easier to read than conventional CT images, according to a research team from the University of Michigan.
November 5, 2012
320-slice 4D head CTA derived from CTP replaces extra scan
By Eric Barnes
Wednesday, November 28 | 8:55 a.m.-9:05 a.m. | VSNR41-02 | Room E451BA new technique can boost the quality of low-dose head CT perfusion (CTP) to the point where it can replace higher-dose 3D CT angiography (CTA), say Dutch researchers, who will explain their findings in this scientific presentation.
November 5, 2012
ROMICAT II shows CCTA cuts hospital time
By Eric Barnes
Wednesday, November 28 | 8:30 a.m.-8:45 a.m. | VSCA41-01 | Room S502ABThe early use of coronary CT angiography (CCTA) in patients with symptoms suggestive of acute coronary syndromes shortens the length of hospital stay and reduces time to diagnosis, according to researchers from Harvard Medical School and Massachusetts General Hospital.
November 5, 2012
Implementing the ACR's CT dose registry
By Eric Barnes
Tuesday, November 27 | 3:50 p.m.-4:00 p.m. | SSJ21-06 | Room S403AThe University of Washington has implemented the American College of Radiology's (ACR) CT dose registry, documenting a number of challenges relating to software installation, data transmission, and data consistency issues, most of which have been solved, according to researchers.
November 5, 2012
Multienergy CT improves virtual colonoscopy CAD performance
By Eric Barnes
Tuesday, November 27 | 3:50 p.m.-4:00 p.m. | SSJ08-06 | Room E353CMultienergy CT can boost the detection accuracy of computer-aided detection (CAD) in virtual colonoscopy because it provides more information about the chemical composition of materials in the colon than conventional CT, according to researchers from Massachusetts General Hospital.
November 5, 2012
CTA, arterial DSA most cost-effective modalities for intracranial aneurysm
By Eric Barnes
Tuesday, November 27 | 3:40 p.m.-3:50 p.m. | SSJ18-05 | Room N228CT angiography (CTA) and intra-arterial digital subtraction angiography (IA-DSA) are the most cost-effective modalities for patients presenting to the emergency department with suspected intracranial aneurysm, researchers from the Netherlands have found.
November 5, 2012
Supine-prone registration for CT colonography taps marginal artery
By Eric Barnes
Tuesday, November 27 | 3:10 p.m.-3:20 p.m. | SSJ08-02 | Room E353CUse of the marginal artery for registration of supine and prone CT colonography datasets may permit more efficient data registration and improve diagnostic accuracy, say researchers from the U.S. National Institutes of Health.
November 5, 2012
Low-dose perfusion CT maps vary depending on software
By Eric Barnes
Tuesday, November 27 | 3:00 p.m.-3:10 p.m. | SSJ17-01 | Room N226Cerebral blood volume and cerebral blood flow values for both gray and white matter rise with the use of low-dose CT, according to a study from Radboud University Nijmegen Medical Center in the Netherlands.
November 5, 2012
Split-bolus spectral CT halves pancreas dose, boosts conspicuity
By Eric Barnes
Tuesday, November 27 | 11:50 a.m.-12:00 p.m. | SSG07-09 | Room E353CCT split-bolus spectral CT improves vascular, liver, and pancreatic attenuation and tumor conspicuity in the pancreas compared with two-phase imaging, using half the radiation dose, say researchers from Beth Israel Deaconess Medical Center.
November 5, 2012
Attenuation-based technique measures patient size for dose estimates
By Eric Barnes
Tuesday, November 27 | 11:40 a.m.-11:50 a.m. | SSG17-08 | Room S404ABSize-specific dose estimates are the big thing in CT dose optimization, of course, but figuring out every patient's size can be a tedious and inexact undertaking. Mayo Clinic researchers will share their time-saving approach in this scientific session.
November 5, 2012
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