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Radiology Daily
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Diagnostic Imaging

Diagnostic imaging is a function of diagnostic radiology concerned with or aiding in diagnosis using radiology. Diagnostic imaging helps radiologists to find the earliest stages of cancer, before the cancer has spread. Advanced diagnostic radiology includes MRI, CT, mammography, MRA, and ultrasound.

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Big price increases for two radiotracers have led imaging facilities to look for alternatives, with at least some success. The tracers are used in ventilation/perfusion scans of patients with suspected pulmonary embolism.

As we reported in May, Jubilant DraxImage of Montreal increased the prices of macroaggregated albumin (MAA) and diethylenetriamine pentaacetate (DTPA). The company is the sole North American manufacturer of both. … read more »

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In emergency department treatment of stroke patients, every second counts. Practice guidelines recommend giving ischemic stroke patients a clot-busting tPA injection within 60 minutes. So which takes longer: getting patients in the door and ready for imaging (door-to-imaging time, or DIT), or getting patients imaged and, if they’re suffering from ischemic stroke, giving them tPA (imaging-to-needle time, or ITN)?

Surprisingly, it’s … read more »

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Two new studies look at imaging-related lessons from the April 2013 terrorist bombing attack during the Boston Marathon—one of interest to post-traumatic stress disorder researchers, and the other of concern primarily to radiologists and the institutions where they practice.

The bombing presented an unanticipated opportunity for a group of researchers who had performed functional MRI brain scans on Boston-area teenagers for … read more »

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Mayo Clinic and 10 other institutions from around the United States are leading an effort to institute a national protocol to limit radiation dosage when imaging children.

Representatives of the institutions published an invited commentary titled “An Appeal for Safe and Appropriate Imaging of Children” online last week in Journal of Patient Safety. Lead author Stephen J. Swensen, MD, a radiologist at … read more »

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A CT technique can accurately analyze lung tumors and guide treatment without the necessity for a biopsy or other invasive procedures, according to research chronicled in an article published last week by the online journal PLOS ONE.

In a study involving tissue samples from 48 patients with non–small cell lung cancer (NSCLC), quantitative CT-based texture analysis (QTA) determined with 89.6 percent accuracy … read more »

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Even loss of consciousness from a blow to the head is not by itself reason enough to give a child a cranial CT scan, according to research published online Monday in JAMA Pediatrics.

Nathan Kuppermann, MD, senior author of the article and principal investigator for the Pediatric Emergency Care Applied Research Network (PECARN), from which the article’s data and analysis were derived, summarized the research … read more »

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A new method of creating radioisotopes could not only eliminate the chronic shortages that the medical world has faced in recent years but also lead to new types of medical imaging and nuclear medicine therapy, according to one of the technique’s developers.

Mark Raizen, PhD, professor of physics at the University of Texas at Austin, is senior editor of an article … read more »

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An optical brain-imaging device could be a cheap, portable way of diagnosing concussions on the athletic field—or the battlefield—a preliminary study suggests.

The device uses functional near-infrared spectroscopy (fNIRS) via a three-pound band that’s strapped around the head. The “headcap” measures the flow and oxygenation of the blood as subjects take a computerized neurocognition test. University of Pittsburgh Schools of the … read more »

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State regulation of radiologic technologists has “little impact on public health and safety” and should be abolished, according to a staff report of an agency of the Texas Legislature.

Christine Lung, vice president of government relations and public policy for the American Society of Radiologic Technologists, begs to differ:
Everyone knows that radiation is a carcinogen. If performed incorrectly, it’s a direct … read more »

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Newer CT scanners drastically reduce the amount of radiation exposure for patients, according to a new study that involved nine sites in the United States and Saudi Arabia.

The researchers compared radiation exposure from first-generation 64-slice single-source and dual-source scanners to that from the new generation of 128-slice dual-source scanners with high-pitch capability. The newer machines reduced overall dosage by 61 … read more »

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