High-Tech Prostate Scan May Boost Cancer Detection
Combo of ultrasound and MRI zeroes in on tumors, helping some men avoid biopsy, experts say
Studies have found that MRI-targeted biopsies are better at both detecting prostate tumors and determining which tumors are more advanced, Rastinehad said.
The technology helped detect advanced prostate cancer in Robert Herr, a Long Island, N.Y., resident who had high PSA levels but underwent a biopsy a couple of years ago that detected no cancer.
"Then the PSA elevated again and my urologist said, 'Why don't you go for this new MRI biopsy and see how it works out for you?'" said Herr, 66.
The fusion biopsy conducted in May ended up detecting high-grade prostate cancer near the top part of the prostate gland, an area normally not sampled in standard biopsy. Herr will begin radiation treatment in August.
"If I had gone for the regular biopsy again, it might not have shown up again and then I'm living with the cancer not knowing anything, and I don't think that's a good idea," Herr said. "To me, I don't think anybody wants to have cancer of any type, but if I have it I want to know about it and do whatever I need to do to treat it. To put your head in the sand, I don't think that's any kind of solution at all."
At this point the technology is both rare and expensive. Only five medical centers in the United States use MRI/ultrasound fusion prostate biopsy, and the devices cost about $180,000, Rastinehad said.
The U.S. Food and Drug Administration approved the device, which was developed in collaboration with the U.S. National Institutes of Health, in April. It is being manufactured by Invivo, a division of Philips Healthcare. Rastinehad said he does not have a financial stake in the company.
While the technology is expensive, Rastinehad believes hospitals will end up saving money because they will be able to cut back on the amount of pathological examinations needed to assess suspected prostate cancer.
For his part, Eggener said the new MRI approach can help doctors meet the overall goal of finding serious cancers in a timely fashion.
"There are some early data to suggest it may be a better way of targeting cancers, finding more cancers and finding more meaningful cancers," Eggener said. "MRI is the best picture we can get of the prostate. It's not perfect, but it is better than what we've had."