Computed Tomography

TEE, helical CT, and MRI Equally Clinically Reliable at Diagnosing Thoracic Aortic Dissection

kevin@rosenberg.net — Thu, 15 Feb 2001 21:26:34 GMT

Diagnostic accuracy of transesophageal echocardiography, helical computed tomography, and magnetic resonance imaging for suspected thoracic aortic dissection: systematic review and meta-analysis.

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FDA Updates Guidance on Measuring Computed Tomography X-Ray Scan Doses

kevin@rosenberg.net — Thu, 15 Feb 2001 21:43:36 GMT

From the FDA web site: Guidance for Industry, FDA Staff, and Third Parties. Provision for Alternate Measure of the Computed Tomography Dose Index (CTDI) to Assure Compliance with the Dose Information Requirements of the Federal Performance Standard for Computed Tomography

This guidance represents the Food and Drug Administration's (FDA's) current thinking on this topic. It does not create or confer any rights for or on any person and does not operate to bind FDA or the public. You can use an alternative approach if the approach satisfies the requirements of the applicable statutes and regulations. If you want to discuss an alternative approach, contact the FDA staff responsible for implementing this guidance. If you cannot identify the appropriate FDA staff, call the appropriate number listed on the title page of this guidance.

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Got inexpensive contrast agent? Milk plays new role in imaging

kevin@rosenberg.net — Mon, 19 Feb 2001 06:41:21 GMT

CHICAGO -- In a new twist on the slogan “milk does a body good,” radiologists are testing use of the dairy staple as a contrast agent in gastrointestinal imaging exams—with excellent results. The researchers reported their findings today at the annual meeting of the Radiological Society of North America (RSNA).

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Kidney Stone Structural Analysis By Helical Computed Tomography (CT)

kevin@rosenberg.net — Mon, 19 Feb 2001 06:43:23 GMT

Vik S posted: Earlier, the diagnosis of kidney stones did not involve information regarding the fragility of the stones. This made it impossible to determine the intensity and number of shock waves required during Lithotripsy to disintegrate the stone. Many patients would end up receiving more shock waves than was necessary to break up their stones. To regulate the use of SWL, investigators have found that computed tomography (CT) images of kidney stones can reveal significant internal structure in stones--structure that is likely to be useful in predicting stone fragility.

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Cell Processor to Improve CT Reconstruction Speed by 100X

kevin@rosenberg.net — Sun, 25 Feb 2001 15:30:12 GMT

Chelmsford, Mass.-based Mercury Computer Systems, a provider of computing systems and software for data-intensive applications is teaming with the Institute of Medical Physics (IMP) of Erlangen, Germany to utilize the IBM/Toshiba/Sony-developed Cell Broadband Engine (BE) processor,

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Springer Book: Atlas of Non-Invasive Coronary Angiography by Multidetector CT

kevin@rosenberg.net — Sun, 25 Feb 2001 19:22:25 GMT

Multidetector CT scanner speeds diagnosis and treatment of patients. One of its many uses is to perform CT coronary angiography. Multidetector CT has generated excitement within the cardiology and radiology community as it provides clear pictures and takes less time than other non-invasive techniques, including conventional spiral and electron-beam CT which can take up to an hour or more. This atlas presents over 160 illustrations, with 116 in color and illustrates the capacity of multidetector CT for the analysis of the anatomy of the coronary arteries.

High resolution CT scanner wins 2006 Global Technology Award

kevin@rosenberg.net — Sun, 25 Feb 2001 19:24:44 GMT

phoenix|x-ray announced that it has been awarded theGlobal Technology Award 2006 in the category “Best Inspection/X-ray system” for its novel 160kV nanofocus® computed tomography system nanotom®. The award was presented by Global SMT & Packaging Magazine during Assembly Technology Expo in Rosemont, Chicago.

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Clearing the thoracolumbar spine in blunt trauma victims

kevin@rosenberg.net — Sun, 25 Feb 2001 19:37:29 GMT

Article reviews the clinical and imaging clearance of the thoracic and lumbar spines of blunt trauma victims and the evolution of these strategies with the use of new imaging technologies.

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High-resolution CT scan modeling for creating facial implants aids in facial reconstruction surgery

kevin@rosenberg.net — Wed, 28 Feb 2001 07:45:44 GMT

A preliminary study suggests that high-resolution computed tomography (CT) modeling allows surgeons to custom-design acrylic implants prior to reconstructive surgery for patients with severe defects in their faces and eye cavities. Such implants appear to offer excellent aesthetic results and are well tolerated over the long term, according to a report in the November/December issue of Archives of Facial Plastic Surgery, one of the JAMA/Archives journals.

Multidetector CT as Forensic Tool to Solve Mysterious Deaths

kevin@rosenberg.net — Wed, 28 Feb 2001 08:00:43 GMT

The team used modern forensic techniques to confirm it was scurvy that doomed the men. Using an advanced form of CT scan called multidetector computed tomography, they studied bones of six of the settlers. The scans revealed evidence of skeletal lesions and bleeding into the joints and bones, telltale signs of the disease.

Vodcasts and Podcasts of Computed Tomography

kevin@rosenberg.net — Wed, 28 Feb 2001 08:05:57 GMT

This podcast discusses cutting edge research in CT scanning (computed tomography) and is aimed at radiologists, radiology technologists, and other healthcare professionals. Free registration required.

Use of Computed Tomography to Predict Failure of Nonoperative Treatment

kevin@rosenberg.net — Wed, 28 Feb 2001 08:10:45 GMT

A study using computed tomography to image the cervical spine and identify which radiographic findings predict failure of non-operative treatment.

Virtual Colonoscopy Effective In Preventing Colorectal Cancer...

kevin@rosenberg.net — Tue, 06 Mar 2001 23:56:15 GMT

Three-dimensional computed tomography colonography, also known as virtual colonoscopy, is an accurate screening method for colorectal cancer, according to a study published in the November issue of the journal Radiology.

Pre-Operative Computed Tomography Coronary Angiography to Detect Significant Coronary Artery Disease in Patients Referred for Cardiac Valve Surgery

kevin@rosenberg.net — Sun, 18 Mar 2001 08:13:57 GMT

The diagnostic accuracy of 64-slice CTCA for ruling out the presence of significant coronary stenoses in patients undergoing valve surgery is excellent and allows CTCA implementation as a gatekeeper for invasive CCA in these patients.

Study comparing risks of contrast-induced nephropathy

kevin@rosenberg.net — Sun, 18 Mar 2001 19:50:59 GMT

The results of a clinical study comparing Isovue®-370 (iopamidol injection), marketed by Bracco Diagnostics Inc. in the United States, and Visipaque™-320 (iodixanol injection), marketed by GE Healthcare in the United States, in renally Impaired Patients undergoing Computed Tomography (IMPACT) showed no significant difference in the rate of contrast-induced nephropathy (CIN) between the two agents.

Multidetector computed tomography to evaluate chest pain

kevin@rosenberg.net — Sun, 18 Mar 2001 20:09:00 GMT

A new study published in JAMA found that a multidetector computed tomography (MDCT) scan, a "fifteen-seconds" heart imaging modality, can accurately identify those patients who are at the greatest risk for acute coronary syndrome.

CT usefulness in diagnosing mesothelioma

kevin@rosenberg.net — Sun, 18 Mar 2001 19:58:49 GMT

Discusses methods for diagnosing asbestos lung disease and mesothelioma and the usefulness of CT.

CT for predicting cardiac deaths

kevin@rosenberg.net — Sun, 18 Mar 2001 20:11:05 GMT

THE AMERICAN Heart Association (AHA) recently published a scientific statement on the utility and limitations of cardiac computed tomography (CT) systems for imaging of coronary heart disease (Circulation, October 17, 2006) after reviewing 245 scientific papers on the topic.

CT Scans Catch Lung Cancer at Earliest Stage

kevin@rosenberg.net — Sun, 18 Mar 2001 20:49:54 GMT

In a finding that could change the landscape of lung cancer diagnosis and treatment, new research shows that annual screening using computed tomography (CT) detected lung tumors at their earliest stage in 85 percent of patients.