Clinical News: Page 2283

Decision tree (often) favors coronary CCTA for chest pain
By Eric Barnes
Wednesday, December 2 | 10:40 a.m.-10:50 a.m. | SSK03-02 | Room S502ABChest pain patients represent an expensive and time-consuming healthcare burden, fraught with risk. Whether coronary CT angiography (CCTA) is a solution to this problem will be discussed in this Wednesday scientific session presentation.
November 15, 2009
Mortality data correspond to simple 'counting' calcium measure on ungated CT
By Eric Barnes
Tuesday, December 1 | 3:30 p.m.-3:40 p.m. | SSJ05-04 | Room S504ABA simple visual counting assessment of calcium scores in low-dose ungated chest CT provides clinically relevant information that corresponds to patient mortality data, according to a new study from Israel.
November 15, 2009
Plenty of incidental extracardiac findings at screening CT, few interventions
By Eric Barnes
Tuesday, December 1 | 11:50 a.m.-12:00 p.m. | SSG09-09 | Room S102DIncidental extracardiac findings pose a quandary for reporting radiologists and cardiologists -- it's uncertain whether mentioning them in radiology reports translates into effective management of clinically significant diseases. In this retrospective study, incidental findings were examined in 151 adults undergoing screening coronary CT angiography over a six-year period.
November 15, 2009
CT team sees eye risks in head scans
By Eric Barnes
Tuesday, December 1 | 11:40 a.m.-11:50 a.m. | SSG19-08 | Room S404ABAn important but often overlooked source of excess radiation in helical CT results from the overranging effect. It is present in all helical CT scans, but it increases with an increasing number of slices. Researchers from the Netherlands assessed the impact on 163 patients undergoing head CT, using 16-, 64-, and 256-slice scanners.
November 15, 2009
Blending ASIR and back-projection algorithms saves chest dose, time
By Eric Barnes
Tuesday, December 1 | 11:30 a.m.-11:40 a.m. | SSG03-07 | Room S404CDThis study from Massachusetts General Hospital, scheduled to be presented Tuesday morning, aimed to find the optimal blend of adaptive statistical iterative reconstruction (ASIR) and filtered back projection (FBP) reconstruction for low-dose and rapid chest CT.
November 15, 2009
Interventional CT doses tamed in broad assessment
By Eric Barnes
Tuesday, December 1 | 11:30 a.m.-11:40 a.m. | SSG19-07 | Room S404ABWide variations were found in the dose levels for five common CT-guided interventional procedures, prompting researchers at Mayo Clinic in Rochester, MN, to adopt a comprehensive program of dose reduction strategies.
November 15, 2009
320-detector CTA cuts runoff contrast dose, broadens patient population
By Eric Barnes
Tuesday, December 1 | 11:20 a.m.-11:30 a.m. | SSG21-06 | Room E353BThe speed and wide coverage of 320-detector-row CT could permit lower contrast doses and potentially even allow runoff CT angiography (CTA) studies in some patients with renal insufficiency, according to researchers from the University of Toronto.
November 15, 2009
DECT beats manual bone subtraction in peripheral artery disease
By Eric Barnes
Tuesday, December 1 | 11:10 a.m.-11:20 a.m. | SSG21-05 | Room E353BRecently introduced dual-energy CT (DECT) methods may present an attractive alternative to conventional bone subtraction techniques, according to researchers from the University of California, Los Angeles.
November 15, 2009
Individuals with coronary artery calcium need osteoporosis screening
By Eric Barnes
Tuesday, December 1 | 10:50 a.m.-11:00 a.m. | SSG12-03 | Room E450BA growing body of evidence is showing an association between osteopenia and osteoporosis and a higher incidence of obstructive coronary artery disease, a topic to be explored in this scientific session presentation.
November 15, 2009
Ultralow-dose CT replaces x-ray of the acute abdomen
By Eric Barnes
Tuesday, December 1 | 10:50 a.m.-11:00 a.m. | VE31-09 | Room S103CDThe use of x-ray is standard practice in many facilities for young patients presenting with acute abdomen, but it doesn't always do the job. Ultralow-dose CT is another option that may provide more diagnostic information, according to study results to be presented in this Tuesday morning session.
November 15, 2009
Cumulative CT doses reveal patients at risk from multiple scans
By Eric Barnes
Monday, November 30 | 3:50 p.m.-4:00 p.m. | SSE22-06 | Room S403BThe integration of CT into routine care is widely considered one of the most important advances in medicine; however, the frequent use of CT has substantially increased the population's cumulative exposure to ionizing radiation.
November 15, 2009
Korean CT dose survey finds scanner quality, education key to dose reduction
By Eric Barnes
Monday, November 30 | 3:30 p.m.-3:40 p.m. | SSE22-04 | Room S403BDr. Seung Eun Jung and colleagues from the Catholic University in Seoul sampled almost 13% of the country's CT scanners, directly measuring CT dose index on a phantom and recording scanning parameters at institutions for head, chest, and abdomen CT, calculating effective doses using automated software.
November 15, 2009
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