Ultrasound

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The exhibition booths occupied by vendors of ultrasound systems at ECR 2010 are likely to be very busy places throughout the congress. Difficult economic conditions are causing a dip in global demand for the more capital-intensive modalities like CT and MRI, and hospital managers are keen for their staff to explore the clinical potential of this versatile and cost-effective technology.

Physicians have used palpation regularly as a diagnostic technique since the days of the ancient Greeks. Up to now, the potential value of this method has been explored in the imaging field only by ultrasound research teams, but at this year’s ECR technical exhibition, delegates can see for themselves how the same principles may be combined with MRI to improve diagnosis in patients with liver disease.

Measuring the fetal zone of the adrenal gland is a better predictor of preterm birth than measuring cervical length, according to research presented at the Society For Maternal-Fetal Medicine Feb. 4.

Sixteen years on from implementation of the Pre-Conception (PC) and Pre-Natal Diagnostic Techniques (PNDT) Act, burdensome bureaucracy penalizes many law-abiding radiologists in India. Furthermore, rather than preventing them, the act has driven up the price of illegal sex selection services. Meanwhile, registered ultrasound clinics face heavy fines for minor infringements.

Breast ultrasound is having its moment. Multiple scientific presentations at the 2009 RSNA meeting showed how careful use of ultrasound could allow imagers to so precisely characterize lesions that women could avoid biopsies.

Ultrasound elastography may be the link bridging the gap between suspicion and definitive proof, a noninvasive means to distinguish between benign and malignant tissue. The technology for doing so appeared some years ago at the annual meeting of the RSNA as an experimental curiosity. It’s been evolving since then until it appears now to have reached a clinical tipping point.

Though generally deemed safe, high-intensity focused-ultrasound ablation of liver and pancreas cancers can lead to delayed complications. According to Korean researchers, practitioners should be aware of-and watch closely for-local and systemic post-HIFU side effects several years down the road.

New ideas take time to catch on in medical imaging, whether they are brand new modalities, such as MR, or new techniques within an established modality, such as color Doppler ultrasound. It’s as though there are dues to be paid. Elastography appears to have paid its dues.

Despite challenges, ultrasound remains useful in obese trauma patients. Using the lowest frequency ultrasound probe along with tissue harmonic imaging improves image quality, according to an education exhibit presented at RSNA 2009.

SonoSite expands iPhone

Hand-carried ultrasound vendor SonoSite expanded its SonoAccess iPhone application to include resource materials for musculoskeletal specialties.