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Mike Mitka

JAMA. 2006;296:2667-2669.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Chicago—While imaging technologies such as magnetic resonance imaging and computed tomography are enormously helpful noninvasive aids for diagnosing and monitoring various medical conditions, such methods have considerable limitations. However, explained scientists describing their research at the Clinical Congress of the American College of Surgeons in October, tiny implantable devices capable of sensing such elements as changes in pressure within a weakened blood vessel or the load borne by an artificial disk in the spine may someday help clinicians treat a variety of vascular and orthopedic problems.

These experimental biosensors detect pressure changes in the area in which they are implanted and transduce those changes into radio waves. The microscopic devices contain hermetically sealed flexible plates; pressure changes cause minute shifting of the plates, resulting in changes in radio wave frequencies that are monitored by an external radio receiver.

A wireless biosensor that emits radio waves is placed . . . [Full Text of this Article]

MONITORING ANEURYSMS