Eric Barnes

[email protected]

MRI phase-mapping quantifies regional wall motion

The assessment of myocardial wall motion plays a key role in diagnostic and therapeutic decision-making, but wall motion is extremely difficult to assess quantitatively. Physicians from Oxford University in the U.K. believe they've found a comprehensive and reproducible method of assessing regional wall motion in tissue with phase mapping (TPM) of MRI data, a technique based on phase velocity.

April 2, 2006

MDCT highly sensitive for aortic dissection

A recent study of patients who underwent MDCT imaging for symptoms suggestive of aortic dissection showed that the modality was highly sensitive and specific for all types of dissection. CT is also faster and generally more accurate than the alternatives, including MRI, ultrasound, and even the invasive gold standard exam, aortography, according to the study authors.

March 28, 2006

Tagged VC succeeds where colonoscopy fails in elderly

Even in expert hands, optical colonoscopy fails to reach the cecum in at least 10% to 15% of patients, with a progressively greater failure rate among elderly and frail patients. A new study from Italy suggests that virtual colonoscopy with fluid and fecal tagging may be an ideal replacement. In patients with failed conventional colonoscopy, VC identified several cancers and earned high marks for patient comfort.

March 27, 2006

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MDCT in pregnant women yields low fetal doses

A new phantom study concludes that institutional MDCT protocols, when used in pregnant women, yield radiation doses well below levels thought to induce neurologic harm to the developing fetus, although the risk of its eventually developing cancer later in life may still be elevated for certain exams that expose the fetus directly.

March 26, 2006

64-slice CTA reliably detects stenoses by patient, less so by vessel and segment

As CT piles on more detector rows, its ability to detect significant coronary artery stenosis is growing apace. Sixty-four-detector CT results are beginning to rival -- though not yet quite equal -- those of the invasive gold standard test, coronary angiography. A new study offers evidence that CT angiography (CTA) finds nearly all patients with significant stenosis, though individual blockages can still be missed.

March 22, 2006

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Image Processing

The more CT detectors, the more MPRs help

Radiologists know the value of multiplanar reconstructions (MPRs) for finding what's wrong. In the abdomen, cross-referencing coronal images with the axials can sometimes reveal subtle pathologies that might otherwise be missed. But some might be surprised to learn that the more detectors rows in the scanner, the more useful MPRs are to the diagnosis.

March 21, 2006

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Gastroenterologist surveys target lesions, VC practice

Dr. David Lieberman, gastroenterologist and noted expert in colon cancer screening, thinks virtual colonoscopy has an important job to do. The former American Society for Gastrointestinal Endoscopy president believes that VC and its associated lesion surveillance offer an unprecedented opportunity to learn more about the natural history of colorectal polyps.

March 19, 2006

Colon CAD helps expert readers

In a study by researchers from London, virtual colonoscopy computer-aided detection (CAD) software beat the experts in detecting medium-sized polyps, though the system is designed for interaction with radiologists rather than competition.

March 15, 2006

Telltale barium coating could help VC find risky polyps

Virtual colonoscopy practitioners have a new and potentially useful way to identify colorectal polyps at increased risk of harboring high-grade dysplasia or cancer, a study from the National Institutes of Health (NIH) suggests.

March 14, 2006

CT measures post-transplant bronchiolitis obliterans severity

Canadian researchers are using CT to assess the severity of bronchiolitis obliterans syndrome (BOS), the most common cause of late death among lung transplant patients. In preliminary experiments, CT attenuation data corresponded to disease severity, and a related study found that high-resolution MDCT beat conventional high-resolution CT (HRCT) in detecting and characterizing BOS.

March 13, 2006

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PET predicts faster cognitive decline in women than men

Women initially outperformed men at low brain tau levels, but the advantage diminished as tau levels increased over time.

Hands Anxiety Adobe Ka Peopleimages

Unclear explanations of contrast MRI exams heighten patient anxiety

Mammo Reading 400

Mammography screening improves survival for late-stage cancers

Minnie Cast Thumbnail (2)

Ultrasound MinnieCast, Episode 2: Body imaging with RUS-PAT

How Agentic AI Is Transforming Radiology Ops

How Agentic AI Is Transforming Radiology Ops

AI-boosted opportunistic LDCT helps evaluate bone mineral density

By Kate Madden Yee

Chest low-dose CT (LDCT) combined with an automated AI protocol shows promise for opportunistic bone mineral density assessment.

September 21, 2023

Ct Scan Patient

AI for diagnosing osteoporosis may be 'a brilliant idea'

A focus group study in the U.K. suggests participants are generally accepting of the use of AI software for diagnosing osteoporosis.

September 21, 2023

Diffusion-based deep learning recovers bone structure data on CT

By Kate Madden Yee

A diffusion-based deep learning model can help recover bone microstructure data from low-resolution CT images of the proximal femur.

September 21, 2023

Femur And Pelvis 400

Do hospital brain MRI online prices correlate with telephone quotes?

By Kate Madden Yee

Do U.S. hospitals' prices for brain MRI exams match prices for the same service quoted by telephone? Perhaps not, researchers suggest.

September 20, 2023

CEUS experts warn of underuse of the modality

By Amerigo Allegretto

Experts in contrast-enhanced ultrasound (CEUS) warned of underutilization of the modality at a recent conference.

September 20, 2023

Allergic reactions tied to many contrast media malpractice cases

By Amerigo Allegretto

Allergic reactions in patients and clinicians' failure to diagnose or treat such reactions make up most malpractice suits tied to contrast media use.

September 20, 2023

Malpractice Magnifying Glass 400

New fluoroscopy procedures raise radiation risks

Doctors at have calculated radiation exposures for patients undergoing newer endoscopic fluoroscopy procedures and the results come with a warning.

September 19, 2023

Radiation Symbol Circle 400

Deep-learning model detects more breast cancers in high-risk women

By Amerigo Allegretto

A mammogram-based deep learning model identifies more breast cancers on screening MRI than traditional risk assessment models.

September 19, 2023

Breast Mammo Computer 400

X-ray tomosynthesis bests conventional x-ray for lumbar spine imaging

By Kate Madden Yee

X-ray tomosynthesis has shown benefits over conventional x-ray for lumbar spine imaging in a recent study.

September 19, 2023

X Ray Spine Back

PET/MRI predicts survival in endometrial cancer patients

PET/MRI scans show the progression of endometrial cancer in patients and may help predict survival outcomes.

September 19, 2023

Images of a 69-year-old woman with endometrial cancer, grade 1 endometrioid adenocarcinoma, T1aN0M0, stage IA. Sagittal (a) and axial (b) T2-weighted MRI show an endometrial tumor (arrow), without deep myometrial invasion. The tumor (arrow) is hyperintense on diffusion-weighted imaging (c) and hypointense on the ADC map (d). The ADCmin of the tumor was 0.45 × 10−3 mm2/s, and the ADCmean was 0.58 × 10−3 mm2/s. PET (e) and PET/MRI fusion images (f) show intense FDG uptake of the tumor (arrow). The SUVmax of the tumor was 12.5, MTV was 3.9 mL, and TLG was 29 g.

Augmented reality is gaining ground in spinal surgery

By Amerigo Allegretto

Augmented reality is rapidly evolving in image-guided spinal surgery, but challenges still remain, according to a recent report.

September 19, 2023

Older, Black women undergo lower biopsy rates after abnormal mammogram

By Amerigo Allegretto

Women who are older and/or Black experience lower biopsy rates and longer biopsy times, recent research suggests.

September 19, 2023

Black Women Hands Mammography 400

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