Computed Tomography News and Research

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Iodinated, Gadolinium based contrast agents do not negatively affect patients

Iodinated and Gadolinium based contrast agents, frequently used during computed tomography (CT) and MRI scans to aid in the imaging process, are associated with a very low rate of adverse effects, according to a large cohort study published in the October issue of the American Journal of Roentgenology (AJR).

21 Sep 2009

ECG gating reduces patient radiation dose during CT angiography

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21 Sep 2009

Medical conference to discuss the current and future use of CT and MRI in autopsy practice

A leading forensic pathologist from the University of Leicester is among the keynote speakers at a unique medical conference in the city examining The Use of CT and MRI in Autopsy Practice.

17 Sep 2009

Multi-detector row computed tomography predicts malignancy of IPMNs

A clinical research article to be published on August 28, 2009 in the World Journal of Gastroenterology addresses the role of multi-detector row computed tomography (MDCT) in predicting malignancy of IPMNs preoperatively. The research team led by Prof. Wang DB from Ruijin Hospital of Shanghai Jiao Tong University School of Medicine recruited a total of 20 patients with pathologically-confirmed IPMNs in their study. Axial MDCT images combined with CT angiography (CTA) and multiplanar volume or curved reformations (MPVR or CR) were preoperatively acquired.

17 Sep 2009

Comprehensive CT scan gives better indication of significant coronary artery disease

A team of researchers led by Massachusetts General Hospital (MGH) radiologists has developed a computed-tomography-based protocol that identifies both narrowing of coronary arteries and areas of myocardial ischemia - restricted blood flow to heart muscle tissue - giving a better indication of clinically significant coronary artery disease.

16 Sep 2009

Carotid and cardiac procedures result in higher incidence of post-operative strokes

Among patients undergoing cardiac surgery, post-operative stroke occurred in approximately 2 percent, was not correlated with significant carotid artery narrowing, but was more common among patients who had combined cardiac and carotid procedures, according to a report in the September issue of Archives of Neurology, one of the JAMA/Archives journals.

14 Sep 2009

NSF grants funds to develop next-generation nano-CT imaging system

In 1991, Ge Wang produced the first paper on spiral cone-beam computed tomography (CT), now an imaging technique used in the mainstream of the medical CT field. Today, Wang, known as a pioneer in this field, and his colleagues have been awarded more than $1.3 million from the National Science Foundation (NSF) to develop the next-generation nano-CT imaging system, which promises to greatly reduce the required dose of radiation.

4 Sep 2009

Gene causing periodontitis, rheumatoid arthritis and osteoporosis identified

Investigators at Hospital for Special Surgery, collaborating with researchers from other institutions, have contributed to the discovery that a gene called interferon regulator factor-8 (IRF-8) is involved in the development of diseases such as periodontitis (gum disease), rheumatoid arthritis and osteoporosis. The study, which will be published online August 30, ahead of print, in the journal Nature Medicine, could lead to new treatments in the future.

2 Sep 2009

CT screening for coronary artery calcification can cause radiation-induced cancer

A study based on computer modeling of radiation risk suggests that widespread screening for the buildup of calcium in the arteries using computed tomography scans would lead to an estimated 42 additional radiation-induced cancer cases per 100,000 men and 62 cases per 100,000 women, according to a report in the July 13 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.

2 Sep 2009

Medical device report provides key data, information and analysis on diagnostic imaging market

Global Markets Direct’s medical device report: “The Future of the Diagnostic Imaging Market to 2015” report provides key data, information and analysis on the global diagnostic imaging market. The report provides market landscape, competitive landscape and market trends information on six market categories including computed tomography systems, mammography equipment, MRI systems, nuclear imaging equipment, ultrasound systems and x-ray systems.

1 Sep 2009

Daxor's signed trial agreement with Pacific Cardiology to provide the BVA-100 instrument

Daxor Corporation, a medical instrumentation and biotechnology company, today announced the receipt of a signed trial agreement from Pacific Cardiology, LLC of Honolulu, Hawaii. This will provide Pacific Cardiology with a Blood Volume Analyzer-100 (BVA-100), an instrument which enables semi-automated measurement of a patient's total blood volume, red blood cell volume and plasma volume.

1 Sep 2009

Study reveals that downregulation of IRF-8 gene causes gum diseases, arthritis and osteoporosis

31 Aug 2009

Medical procedures are a key source of ionizing radiation exposure in U.S. according to researchers

The Radiological Society of North America (RSNA) reaffirmed its commitment to patient safety today in responding to a study and accompanying perspective on radiation dose from medical imaging procedures in the New England Journal of Medicine (NEJM).

28 Aug 2009

New online educational forum for medical professionals from HMP Communications

HMP Communications, the authoritative source for education services targeting healthcare professionals for over two decades, announced it has added a new online educational forum at www.CardiovascularLIVE.com. The site offers video instruction and discussion forums for medical professionals.

26 Aug 2009

CardioDx completes multicenter validation study for Corus CAD

CardioDx, a cardiovascular genomic diagnostics company, announced today that the company has successfully completed its multicenter validation study for Corus CAD, the first and only gene expression test to quantify the likelihood of obstructive coronary artery disease (CAD) in patients with stable chest pain.

26 Aug 2009

Concussions could result in permanent brain impairment

Concussions, whether from an accident, sporting event, or combat, can lead to permanent loss of higher level mental processes. Scientists have debated for centuries whether concussions involve structural damage to brain tissue or whether physiological changes that merely impair the way brain cells function, explain this loss.

24 Aug 2009

New minimally invasive surgery techniques and instruments reduce tissue damage and infection

New, delicate surgery techniques to hunt for tumours could benefit from a lighter touch - but from a robot, rather than from a human hand. Canadian researchers have created a touchy-feely robot that detects tougher tumour tissue in half the time, and with 40% more accuracy than a human. The technique also minimises tissue damage.

24 Aug 2009

AETC Chicago launches 24/7 veterinary emergency care center

As of September 1, Chicago's approximately 1.6 million pets* will have access to 24-hour emergency medical attention - and ongoing hospitalization - should they fall victim to accident or illness. Located at 3927 W. Belmont, Animal Emergency & Treatment Center (AETC) is the only veterinary emergency and specialty center in the city to offer care at any hour of the day or night, 365 days a year.

21 Aug 2009

Siemens' state-of-the-art high-definition PET/CT scanner installed at Long Beach PET Imaging Center

Long Beach PET Imaging Center, a leading diagnostic imaging center in the Long Beach, Calif.-area, announced today it has completed the installation of a new state-of-the-art HD (high-definition) PET/CT scanner, the first of its kind in the area.

20 Aug 2009

Computed tomography angiography can identify abnormalities and injury beyond the pulmonary arteries

Children with clinically suspected pulmonary embolism (PE) are increasingly being evaluated with CT angiography (CTA). Even though many children ultimately test negative for PE, study results suggest that CTA is still valuable for this indication because it has the ability to accurately detect a variety of alternative diagnoses.

19 Aug 2009