Ultrasound

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Transvaginal ultrasound demonstrates good sensitivity and specificity for detecting endometrial cancer, a study from the University College, London. finds. But that doesn’t mean it’s suited for use in the general population just yet. The researchers found transvaginal ultrasound is better for high-risk groups prone to endometrial cancer, and especially in the management of postmenopausal women undergoing pelvic scans for reasons other than vaginal bleeding.

U.S. hospitals could save nearly $22 million annually by deemphasizing CT in favor of diagnostic ultrasound as the frontline imaging test for suspected appendicitis. Such a change would also spare many patients unnecessary exposure to ionizing radiation from CT, according to financial evaluation and meta-analysis by Laurence Parker, Ph.D., an imaging economics researcher at Thomas Jefferson University in Philadelphia.

Dr. Ellen Mendelson is a co-author on a paper exploring the use of shear wave elastography to distinguish between benign and malignant lesions. In an interview with Diagnostic Imaging, she explains what shear wave elastography is and why it could become a standard element of breast imaging.

The use of ultrasound needle guidance improves the performance, outcomes, and cost-effectiveness of knee injections in people with osteoarthritis, according to research presented last week at the American College of Rheumatology Annual Scientific Meeting in Atlanta.

Debate continues in the medical community about how many exams it takes before a physician is proficient in identifying ectopic pregnancy with ultrasound. The American Institute of Ultrasound in Medicine recommends at least 300 sonographic examinations for obstetric indications. The American College of Emergency Physicians recommends a minimum of 25 exams in each emergency bedside sonography indication. A new study finds 25 exams are not enough, but 300 are probably too many.

When it comes to the transducers that power ultrasound, less is more. As they have gotten smaller, more has been packed into the handheld probes that host them, providing more information, allowing easier access to the body’s acoustic windows, and offering easier handling by operators. Now this triad of benefits might be in line for a further boost, a big one.

Royal Philips Electronics announced it has acquired Shanghai Apex Electronics Technology, a leading Chinese manufacturer of ultrasound transducers, key determinants of image quality for ultrasound systems. The acquisition strengthens Philips’ portfolio of high-quality transducers specifically aimed at the value segment in emerging markets.

While the dramatic effects of the economic recession have been felt in the Western European and North American markets for ultrasound imaging equipment, the Chinese market has seen tremendous growth over the last two years. Driven by China’s ongoing healthcare reform, strong economic growth, and the Chinese population’s increasing awareness of healthcare issues, the second edition of InMedica’s study The China Market for Ultrasound Imaging Equipment – 2010 Edition predicts the Chinese market for ultrasound imaging equipment will exceed $1 billion by 2014, growing at a compounded average growth rate of 9.3%.

Using transcranial Doppler ultrasound to detect asymptomatic cerebral emboli can identify patients who are at a higher risk of stroke and transient ischemic attack as well as those with a low absolute stroke risk, according to an international study.

A pilot study involving eight community midwives from Royal Devon and Exeter NHS Foundation Trust suggests that portable ultrasound has the potential to reduce hospital admissions for predelivery scans. This would eliminate the need for patients in remote areas to travel to appointments.

Synexus, a Manchester-based multinational company dedicated to the recruitment and running of clinical trials, has recently invested in Doppler ultrasound equipment for each of its seven U.K.-based dedicated research centers. After training for all Synexus’ doctors, the facilities are now being used as part of the drive to recruit patients to a new diabetes study.

Radiation safety standards are becoming increasingly stringent. Ultrasound systems, however, present no such safety threats, and manufacturers are trying to enhance the versatility of these devices, both in primary and secondary diagnosis. Elastography and therapeutic and contrast-enhanced ultrasound are poised to herald new and more effective means of diagnosis.