Eric Barnes

[email protected]

Prep monitoring ensures safety of VC in elderly

Monitoring elderly and frail patients during bowel preparation appears to be a prudent way of avoiding problems with virtual colonoscopy exams, according to a new study from Ireland. While most patients 70 years and older took their cathartic prep in stride, a few with minor irregularities such as electrolyte imbalances convinced the investigators they were on the right track with monitoring.

January 27, 2008

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AuntMinnie.com Virtual Colonoscopy Insider

January 21, 2008

Model finds polyp surveillance effective for cancer prevention

The risk of developing colorectal cancer from polyps found at virtual colonoscopy but left unresected is not precisely known, and the practice of polyp surveillance is still controversial. But a new study concludes that the low likelihood of advanced neoplasia combined with the high cost of colonoscopy argue against the immediate removal of small lesions.

January 20, 2008

Trauma radiologists overhaul abdominal CT contrast protocols

Radiologists routinely administer both an oral barium suspension and IV contrast for evaluating suspected appendicitis, diverticulitis, and small-bowel obstruction (SBO). Would studies work as well without oral contrast? And what about oral iodine? Can it replace barium in abdominal applications other than virtual colonoscopy? Two research groups recently explored these issues.

January 20, 2008

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ACCURACY trial compares coronary CTA to angiography

The high accuracy and negative predictive value of CT coronary angiography (CTA) held steady in a trial involving 16 centers and a cohort of patients presenting with chest pain and a buffet table of cardiovascular risk factors.

January 17, 2008

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Coronary CTA's time is now, according to Dowe

Coronary CT angiography's (CTA) ability to directly visualize the coronary arteries represents a huge medical advance capable of saving countless lives. Coronary CTA has put several other common tests on the path to obsolescence, but which patients benefit the most from coronary CTA? What about radiation dose? Dr. David Dowe of Atlantic Medical Imaging in Galloway, NJ, recently shared his experience, advice, and views of coronary CTA's place in the world.

January 16, 2008

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AuntMinnie.com CT Insider

January 15, 2008

Cardiac Imaging

AuntMinnie.com Cardiac Imaging Insider

January 14, 2008

Coronary CTA study aims for lowest dose

A study from Switzerland concludes that low-dose prospectively gated coronary CT angiography (CTA) is both feasible and promising, but not without wrinkles. Relying on prospectively triggered gating and some of the lowest radiation doses yet achieved for prospectively gated coronary CTA, the team reported that 95% of all coronary segments achieved diagnostic image quality, but image quality was very dependent on heart rate.

January 10, 2008

Pending Medicare decision roils cardiac CTA

On December 13, 2007, the U.S. Centers for Medicare and Medicaid Services (CMS) proposed a wholesale change in the way coronary CT angiography (CTA) is reimbursed under Medicare. The proposal would severely limit payments for coronary CTA, and cardiac imaging providers are racing against the clock to prevent its implementation.

January 7, 2008

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New benchmark helps monitor cumulative CT radiation dose

The findings highlight the need for systematic dose tracking and rigorous justification of imaging.

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Study questions routine use of radiotherapy after bone surgery

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CEUS outshines color Doppler imaging for indeterminate kidney lesions

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Women's Imaging MinnieCast, Episode 2: Risk-based vs. annual mammography screening, part 1

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Chest x-rays reveal atherosclerosis in patients undergoing amputations

Researchers highlight opportunities for diagnostic radiology oral exam

By Amerigo Allegretto

The impending diagnostic radiology oral exam should be welcomed for aspiring radiologists, according to a published editorial.

January 5, 2024

Doctor Student Nurse Medical Personnel 400

PET reveals patterns underlying cognitive decline in patients with DLB

F-18 FDG-PET imaging in patients with dementia with Lewy bodies (DLB) has shown that brain hypo- and hypermetabolism may have different affects on cognition.

January 5, 2024

DLB-hypo (hypometabolic changes in dementia with Lewy bodies) was characterized by relatively reduced bilateral metabolic activity (color-coded blue) in the bilateral parietal, temporal, and occipital cortices, while DLB-hyper (hypermetabolic changes in dementia with Lewy bodies) showed relatively increased metabolic activity (color-coded red) in the cerebellum, bilateral sensorimotor, orbitofrontal, insular, and parahippocampal cortices, bilateral putamen, globus pallidum, hippocampus, and amygdala. Image courtesy of npj Parkinson’s Disease.

ChatGPT gives 'mostly' appropriate responses for breast pathology

By Amerigo Allegretto

ChatGPT could be an accessible source of information for women waiting to discuss breast biopsy results with their healthcare practitioners.

January 5, 2024

Artificial Intelligence Ai Binary Code 400

Cyberattacks: What can radiology do to boost protection?

In the wake of the 2021 attack on the Irish health system, authors from Cork have written about their experiences and how they've modified their approach to cybersecurity.

January 5, 2024

Cyberattack Hacker

FAPI-PET outperforms FDG-PET in diagnosing pancreatic cancer

F-18 FAPI-PET/CT is superior to F-18 FDG-PET/CT for diagnosing and staging patients with pancreatic cancer.

January 5, 2024

Typical PET (top), PET/CT (middle), and CT and MR (bottom) images of primary tumor obtained using both radiotracers in representative patients (A and B). Tumor is marked by arrows. DWI = diffusion-weighted imaging. Image courtesy of the Journal of Nuclear Medicine.

MRI helps clinicians assess neural involvement in endometriosis

By Kate Madden Yee

MRI could help clinicians assess neural involvement in endometriosis and help prevent irreversible nerve damage and chronic sensorimotor neuropathy.

January 4, 2024

Spectrum of imaging features of nerves involved in endometriosis in three women. (A) Coronal T1W contrast-enhanced MR image in a 44-year-old woman shows a thickened left sciatic nerve with increased enhancement (solid arrows) and a fibrotic mass (*). The right-side sciatic nerve is normal in appearance (dashed arrows). (B-D) Axial T1W image (without contrast enhancement) with fat saturation (B) in a 43-year-old woman shows a cystic endometriotic lesion with signal hyperintensity (arrow in B). The adjacent left iliacus muscle is asymmetrically thickened due to involvement by endometriosis (* in B). Axial T2-weighted MR image (C) at the same level as B shows T2 shading in the cystic lesion (arrow in C) and a fibrotic mass replacing the iliacus muscle (* in C). Sagittal T2-weighted MR image (D) shows the sacral nerve roots (dashed arrows in D) encased by a fibrotic endometriotic mass (* in D). (E) Axial T2-weighted MR image in a 37-year-old woman shows atrophy of the left iliopsoas (solid oval) and sartorius muscles (dashed oval), both innervated by the femoral nerve. Images and caption courtesy of the RSNA.

CEFUS visualizes carotid plaque volume

By Amerigo Allegretto

3D contrast-enhanced fusion ultrasound (CEFUS) can analyze carotid plaque volume burden and could help monitor plaque development over time.

January 4, 2024

Segmentation of the carotid artery included the reconstruction of the carotid artery from 3D CEFUS/3D CTA to enable volume quantifications. (a) Only shown for 3D CEFUS, a 3D cylindrical model was initialized from manually set circle marks of the vessel wall border (media-adventitia interface) in the common carotid artery and internal carotid artery. From the circles, a mesh of the vessel border (yellow delineation) was formed. (b) The contour of the contrast-filled lumen was outlined (red delineation), creating a lumenography into the final reconstructed 3D carotid model. The same segmentation procedure was performed on the corresponding 3D CTA. The images are available to use under a Creative Commons license: CC BY 4.0 DEED, Attribution 4.0 International.

Customized support reduces CT, MRI order errors

By Kate Madden Yee

Up to 44% of diagnostic errors are due to laboratory tests and radiology exams that were inappropriately ordered, according to new research.

January 4, 2024

Standardized reporting categorizes breast cancer detection methods

By Amerigo Allegretto

A standardized system can help radiologists accurately categorize the method of detection when performing image-guided breast biopsies.

January 4, 2024

Women Cancer Patient 400 (1)

Bone health a concern among lung transplant patients

Implementing a clinical bone health protocol may reduce fractures in lung transplant recipients.

January 3, 2024

Enlarged perivascular spaces in infant brains linked to autism risk

By Kate Madden Yee

Infants with enlarged perivascular spaces have a more than two-fold greater chance of developing autism compared to infants with normal-sized perivascular spaces.

January 3, 2024

Extra-axial cerebrospinal fluid (EA-CSF) and perivascular space (PVS) segmentation on a 24-month scan of a child who was diagnosed with autism. Image courtesy of Dea Garic, PhD, and Mark Shen, PhD.

PET/CT predicts brain tumors in melanoma patients

PET/CT scans have the potential to predict brain metastasis in melanoma patients.

January 3, 2024

A 49-year-old patient with primary clinical stage III melanoma underwent F-18 FDG-PET. The primary tumor Breslow thickness was 6.5 mm. On initial F-18 FDG-PET images, this patient had a high SUVmax (52), resulting in limited survival with the occurrence of brain metastasis in the first year of follow-up (horizontal arrow). Notably, during the course of the treatment, the patient underwent surgical removal of the primary tumor as well as lymph node dissection, followed by neoadjuvant radiotherapy and immunotherapy. Image courtesy of Cancers.

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