Novel technique improves prostate cancer detection

New York, Jan 7: Researchers have developed a non-invasive imaging technique to detect the severity of prostate tumour which can help doctors in more precisely and effectively determining appropriate treatment. The new approach is called restriction spectrum imaging-MRI or RSI-MRI. 'This new approach is a more reliable imaging technique for localising tumours. It provides a better target for biopsies, especially for smaller tumours,' said first author Rebecca Rakow-Penner from University of California, San Diego School of Medicine.

The technique is also valuable in surgical planning and image staging, David Karow, assistant professor of radiology at UC San Diego pointed out. The new technique improves upon the current standard of care for detecting and diagnosing prostate cancer - contrast enhanced magnetic resonance imaging (MRI), which involves intravenously injecting patients with a contrast agent to highlight blood flow. (Read: 6 symptoms of prostate cancer all men should know)

It also incorporates the features of an imaging technique called diffusion MRI that measures the diffusion of water and has been a standard imaging technique in the brain. The new approach corrects magnetic field distortions found in earlier methods and focuses upon water diffusion within tumour cells. By doing both, the ability of imaging to accurately plot a tumour's location is increased and there is a more refined sense of the tumour's extent, said Nathan White, assistant project scientist at UC San Diego. The study appeared in the journal Prostate Cancer and Prostatic Disease. (Read: Why testosterone may increase prostate cancer risk in men)

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Source: IANS

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