Scientists Use Ultrasound to Find a Shark ‘Maternity Ward’ in the Bahamas

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“… Hammerschlag and his research partners set out to study this abnormal population, but they wanted to try something different. The typical technique for studying shark reproduction is to “sacrifice” the animal and study it postmortem … In the beginning, we started off just taking blood,” Hammerschlag said. While it didn’t kill the sharks, the tests showed very little differences between pregnant and immature sharks, and they weren’t very informative, he said. … In 2011, they tried something different: an ultrasound machine, the same device expectant mothers find in an ob-gyn’s office. The first attempts didn’t provide clear enough images, but work with a newer device a few years later yielded high-resolution images and a mother lode of data about the pregnant sharks’ pups and reproductive systems. The results were published last month in the journal Aquatic Biology.”

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Dental applications abound for ultrasound imaging

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“Ultrasound imaging has a promising future as a hard- and soft-tissue diagnostic tool in all dental specialties, according to a comprehensive literature review…”.  New portable ultrasound technology may make ultrasound an affordable option for many dental practices.

“Ultrasonography may provide a significant benefit to patients by allowing early detection of tooth lesions and defects, measurement of mucosa and gingival thickness, dental implant locations, and dental scanning,” the study authors wrote.

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More on Dental Ultrasound…

Ultrasound Reveals Knuckle-Cracking Fireworks

Research presented at the 2015 annual meeting of the Radiological Society of North America (RSNA) tackles one of life’s great mysteries: what causes a knuckle to “crack” out loud? …

Knuckle-cracking…In the first study of its kind, researchers recorded simultaneous audio and visual evidence of knuckles cracking. Forty healthy adults, including 17 women and 23 men (age range 18-63), were examined at UC Davis with ultrasound imaging, as they attempted to crack the knuckle at the base of each finger, known in medical parlance as the metacarpophalangeal joint (MPJ)…

…Using a small transducer, a sonographer recorded video images of 400 MPJs, as participants attempted to crack their knuckles. The sonographer also captured static images of each MPJ before and after participants tried their hands at cracking…

Read the entire article here …

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Ultrasound Screening Improves Breast Cancer Detection in Asian Women

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Adding ultrasound to standard mammography tests in breast screening could result in improved rates of detection for breast cancer in women in Japan, according to a new study…

…The results show that ultrasound combined with mammography resulted in correct identifications of cancer in more than 9 out of 10 cases (91% sensitivity), whereas for women given mammography alone, just over three quarters of tests correctly identified breast cancer (77% sensitivity)…

Read about the study here

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