Computed Tomography News and Research

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Imaging PR status may help identify tumor response to endocrine therapy

Research published in the July issue of The Journal of Nuclear Medicine shows imaging progesterone receptor (PR) status also may be able to identify responders and nonresponders to endocrine therapy at an early stage.

3 Jul 2012

Routine use of pelvic CT scans in Wilms tumor questioned

Omitting pelvic computed tomography scans from the routine surveillance of off-therapy patients with Wilms tumor could reduce radiation exposure without compromising relapse detection rates, researchers report.

2 Jul 2012

Site of care linked to racial imaging disparities in stroke

Patients with stroke are less likely to undergo carotid artery imaging if they are treated at a hospital that serves a population with a high proportion of minority ethnicities, say researchers.

2 Jul 2012

$Simple tests may ease scaphoid fracture assessment$

Simple tests may ease scaphoid fracture assessment

Researchers have devised a clinical prediction rule that can help physicians assess patients with a suspected scaphoid fracture.

29 Jun 2012

Superior temporal sulcus perfusion linked to QoL in schizophrenia

Schizophrenia patients with a relatively high quality of life show hypoperfusion in the superior temporal sulcus compared with those with a relatively low quality of life.

22 Jun 2012

Every day counts for ruptured aneurysm treatment

Patients with ruptured intracranial aneurysms should undergo treatment as soon as they become eligible, shows an analysis of the International Subarachnoid Aneurysm Trial.

22 Jun 2012

ATS task force recommends annual lung cancer screening using LDCT

A lung screening and surveillance task force, established by the American Association for Thoracic Surgery (AATS) and led by medical professionals from Brigham and Women's Hospital (BWH), is strongly recommending new guidelines for lung cancer screening. The guidelines were published this week in the online edition of the Journal of Thoracic and Cardiovascular Surgery (JTCVS).

22 Jun 2012

North Shore-LIJ installs new imaging technology that uses lower radiation doses for CT scans

GE Healthcare today unveiled the GE Blueprint for low dose, a comprehensive program that helps healthcare providers integrate CT technologies, education and process improvements, and data analysis to reduce patient radiation dose from Computed Tomography (CT) by up to 50 percent.

22 Jun 2012

Connexin 43 deficiency may protect against bed rest-associated bone loss

Mice lacking connexin 43, the most abundant gap junction protein in bone, have a decreased susceptibility to the effects of mechanical unloading on bone, US researchers report.

21 Jun 2012

Improved CT angiography protocols minimize radiation exposure

Refinements to coronary computed tomography angiography practices can significantly reduce the radiation dose associated with imaging, demonstrates research from Massachusetts General Hospital in Boston, USA.

19 Jun 2012

A third of ED imaging for PE is avoidable

Data from 12 hospitals in the USA indicate that one-third of imaging performed in the emergency department for suspected pulmonary embolism is avoidable, according to a National Quality Forum measure.

15 Jun 2012

Use, overuse of imaging tests adds about $100 billion to U.S. medical bills

The use of diagnostic imaging has nearly tripled since the mid-1990s, according to a new study, raising questions about whether the benefits outweigh the risks of increased radiation exposure.

14 Jun 2012

Siemens receives FDA clearance for SOMATOM Perspective CT system

Siemens Healthcare has announced that the Food and Drug Administration (FDA) has cleared the SOMATOM Perspective – an advanced 128-slice computed tomography (CT) scanner engineered to drive efficiency and reduce costs.

From Siemens Healthineers 14 Jun 2012

Significant increase in use of CT, MRI and PET imaging over the last two decades

Among six large integrated health care systems between 1996 and 2010 there was a substantial increase in the use of advanced diagnostic imaging, including approximately a tripling of the use of computed tomography and nearly a quadrupling of the use of magnetic resonance imaging, as well as a substantial increase in estimated radiation exposure, according to a study in the June 13 issue of JAMA.

13 Jun 2012

Accumulated CT radiation dose triples pediatric cancer risk

The use of computed tomography scans should be minimized in children, recommend researchers who have found a significantly increased risk for malignancy with repeated imaging.

11 Jun 2012

Philips highlights portfolio of NM applications for IntelliSpace Portal at SNM 2012

At this year's SNM Annual Meeting, June 9-13, Royal Philips Electronics is highlighting its portfolio of nuclear medicine (NM) applications for IntelliSpace Portal, adding to its existing portfolio of CT, MR and multimodality applications.

11 Jun 2012

BCSI launches 5 new cyclotrons for isotope research and production

Best Cyclotron Systems is unveiling five new cyclotrons for isotope research and production at the Society of Nuclear Medicine (SNM) Annual Meeting on June 9-12 in Miami Beach, Florida.

11 Jun 2012

Appropriate CT scans may save and extend lives of children

The American College of Radiology (ACR) urges that results of a study (Pearce et al) to be published in the Lancet regarding radiation risk from pediatric computed tomography (CT) scans should not keep parents from getting needed medical imaging care for their children, but should be discussed with their physician and factored into their shared decision making before an imaging scan is performed.

7 Jun 2012

Risk of leukaemia and brain cancer in children could be tripled by radiation exposure from CT scans

Radiation exposure received from 2 to 3 computed tomography (CT) scans of the head in childhood (aged under 15 years)—giving a cumulative dose of around 60 mGy— can triple the risk of later developing brain cancer, while around 5 to 10 such scans (cumulative dose around 50 mGy) could triple the risk of developing leukaemia (with the differing number of scans related to different absorption rates of the brain versus the bone marrow and age at time of scanning).

7 Jun 2012

Scientists develop new low-dose CT-scan technique

Scientists have developed an X-ray imaging method that could drastically improve the contrast of computed tomography (CT) scans whilst reducing the radiation dose deposited during the scan. The new method is based on the combination of the high contrast obtained by an X-ray technique known as grating interferometry with the three-dimensional capabilities of CT.

5 Jun 2012