Molecular Imaging Radiology Insider

Dear Molecular Imaging Insider,

During the past few years, positron emission mammography (PEM) devices have been developed to overcome the restrictions of whole-body PET imaging for staging breast cancer. PEM systems have many potential benefits over whole-body PET for breast imaging, including high sensitivity for the emitted radiation, better spatial resolution, substantially reduced attenuation, and lower costs, according to new research from Duke University in Durham, NC.

The Duke group collaborated with a team from the Thomas Jefferson National Accelerator Facility in Newport News, VA, to develop a dedicated PET mammography unit. Their device consists of two 15 x 20-cm planar detectors and 3 x 3 x 10-mm lutetium gadolinium oxyorthosilicate scintillator elements, and boasts a 15 x 20-cm useful field-of-view.

Their pilot study, which relied on visually conspicuous FDG uptake as the sole indicator of abnormality, determined an overall sensitivity of the device for malignancy was 86%, with a positive predictive value of 90%.

As a Molecular Imaging Insider subscriber, you have access to this story before it's published for the rest of our members. To read more about the latest developments in PEM technology, click here.

In related news, PET proponents scored an early win this year with the Centers for Medicare and Medicaid Services (CMS) announcing coverage of the modality for use in staging cervical cancer.

You'll want to stay tuned to AuntMinnie as molecular imaging heats up in March. We'll be reporting on molecular imaging from the European Congress of Radiology in Vienna, Austria, and from the annual conference of the Academy of Molecular Imaging, taking place this year in Orlando, FL.

Finally, if you haven't done so this year, be sure to stop by and take a look at our online reference book, Nuclear Medicine on the Internet, authored by Dr. Scott Williams of Advanced Radiology Consultants in Bridgeport, CT. This online e-book is updated each month so you're sure to get the latest news on clinical investigations and techniques for the entire spectrum of molecular imaging. Check out Dr. Williams' most current postings by clicking here.

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