Ultrasound

CT is moving beyond detection and quantification of coronary artery calcium to grading of coronary stenoses, identifying not only vulnerable plaques but, more important, vulnerable patients. Yet its ultimate role in predicting risk of cardiac events remains unclear.

Exposing a fetus to ionizing radiation is never a good idea, but it can be necessary to diagnose potentially live-threatening gastrointestinal and genitourinary conditions during pregnancy.

The industry ended the calendar year with a flurry of FDA clearances, easily topping last year’s total and establishing a new high for the decade.

No other company has done what GE has done: The merger of its medical systems unit with British pharmaceutical giant Amersham combined a multimodality maker of imaging equipment with the manufacturer of contrast media.

A high-resolution ultrasound-based portable device will help physicians calculate bone loss in space travelers, according to researchers at NASA’s National Space Biomedical Research Institute. While focused on space-related health issues, NSBRI findings may translate into help for earth-bound patients with similar conditions.

VitalWorks changes name, completes medical division saleIT developer VitalWorks has completed the sale of its medical division to Cerner for $100 million in cash. The company announced Nov. 15 a definitive agreement to sell the division, following its decision to focus on radiology IT systems. With the deal now finished, the company has changed its name to Amicas and moved its headquarters to the Boston digs of this PACS vendor, which VitalWorks acquired in late 2003.

Ultrasound is incomparable in its niche as a safe, cost-effective, and portable imaging technique. Nevertheless, standard 2D ultrasound suffers because its display of anatomy lacks reproducibility and precision. Unlike CT and MR, which produce uniform sequential pictures of the anatomy wherever and whenever they are done, ultrasound examinations differ from clinic to clinic, operator to operator.

Advanced computer modeling and artificial intelligence algorithms allow physicians treating prostate cancer to zero in on active tumor cells by mapping MR spectroscopy data onto ultrasound therapeutic images.

In a major breakthrough, researchers in Austria have developed an ultrasound-guided technique to repair the urinary tract of patients with urinary incontinence by injecting stem cells harvested from the patient's own body. They found that almost every patient had been cured one year after the stem cell treatment.

A new shared services system built around an advanced processing chip was released jointly at the RSNA meeting by TeraRecon and Fukuda-Denshi.

If ever I undergo an imaging examination of my hands and wrists, the radiologist will need to know that increased fluid in my second and fifth flexor sheaths is probably quite normal because I am a regular typist.

Three- and four-dimensional ultrasound systems have generated stunning pictures, especially of the fetal face, and proffered the tantalizing prospect of offline image reconstruction. Early systems got a lukewarm reception, largely because they lacked wide clinical application, flexibility in image processing, and productivity-conscious tools. But volumetric ultrasound displayed at the RSNA meeting demonstrated the maturation of the technology with new systems for routine general radiology and for imaging complex anatomy and pathology, as well as postprocessing enhancements for presenting and evaluating data in multiple planes and user-friendly, push-button data interrogation.

Preliminary findings from a national trial of ultrasound as a screening tool in patients at high risk for breast cancer shed light on key variables that influence radiologist interpretive performance.

Although still in research stages, freehand 3D ultrasound shows promise in guiding surgery and radiotherapy in the clinical setting, according to researchers at the University of Cambridge in the U.K.

Patients with uterine fibroids have a new treatment option, which uses MR to guide a high-power ultrasound beam that heats and destroys fibroid tumors. The ExAblate 2000 technology was approved by the FDA in October and showcased at the 2004 RSNA meeting.

As radiation therapy develops more sophisticated targeting, researchers are turning to new imaging methods to direct it. Fused scintigraphy and CT images and daily ultrasound scanning both show promise as tools to concentrate intensity-modulated radiation therapy (IMRT) and spare surrounding healthy tissue.

Focused ultrasound can cook a lot more than uterine fibroids. The ablation technique is also safe and effective treating large hepatocellular carcinomas, according to papers presented Wednesday.

Ultrasound-guided therapy using adult stem cells could expand the modality’s role in the diagnosis and management of urethral and bladder conditions. New applications include endoluminal probes, Doppler technology, and 3D imaging capabilities, according to papers presented at the RSNA meeting Sunday.

Cedara Software is developing a computer-assisted detection system for breast ultrasound. The software, announced as a work-in-progress at the RSNA meeting, is intended to identify the sonographic characteristics of benign as well as malignant breast masses and to classify the extent of malignancy for specific nodules.

Medison has added digital multibeam processing to its SonoAce 8000 SE mid-level ultrasound system. The new capability, shown at the RSNA meeting, increases frame rates during both color and 2D imaging and supports harmonic imaging to enhance clarity and spatial resolution. Features include multibeam color and Doppler imaging and pulsed-wave spectral Doppler.

Toshiba’s high-performance Aplio scanner just got an upgrade. The Aplio xV debuting at the RSNA meeting features standard and optional software designed for radiology and cardiology.

Sonographic examination with microbubble contrast agents can reliably characterize focal liver lesions, confirm or exclude hepatocellular carcinomas, and remove the need for more invasive, costly imaging, according to studies presented Monday.

GE Healthcare is framing 4D ultrasound as the way to accelerate workflow, using protocols developed for the company’s new version of the Logiq 9. The scanner, outfitted with 4D algorithms and three volumetric probes, debuted this week at the company’s booth on the RSNA exhibit floor.

Radiologists are taking advantage of new data that support imaging techniques to rule out acute appendicitis. They may help lead to consensus on the best protocols to diagnose this condition accurately, according to studies presented Monday.

As radiation therapy develops more sophisticated targeting, researchers are turning to new imaging methods to direct it. Fused scintigraphy and CT images and daily ultrasound scanning both show promise as tools to concentrate intensity-modulated radiation therapy (IMRT) and spare surrounding healthy tissue.

Preliminary findings from a national trial of ultrasound as a screening tool in patients at high risk for breast cancer shed light on key variables that influence radiologist interpretive performance.

As I type this article in the newsroom at McCormick Place, subtle but clinically significant changes may be occurring in my fingers. If ever I undergo an imaging examination of my hands and wrists, the radiologist will need to know that increased fluid in my 2nd and 5th flexor sheaths is probably quite normal because I am a regular typist.

Ultrasound-guided therapy using adult stem cells could expand the modality’s role in the diagnosis and management of urethral and bladder conditions. New applications include endoluminal probes, Doppler technology, and 3D imaging capabilities, according to papers presented at the RSNA meeting Sunday.

A new shared services system built around an advanced processing chip was released jointly at the RSNA meeting by TeraRecon and Fukuda-Denshi.