Eric Barnes

[email protected]

JAMA study finds wide variation in cardiac CTA dose

Coronary CT angiography (CTA) providers are failing to protect their patients from high radiation dose -- with dose levels varying widely between facilities, according to a new multinational study in the Journal of the American Medical Association.

February 2, 2009

AHA science advisory warns about cardiac imaging dose

An American Heart Association (AHA) report in the current issue of Circulation offers new recommendations for cardiac imaging that uses ionizing radiation, including coronary CT angiography (CTA). The new science advisory states that coronary CTA use should be restricted due to uncertainty regarding the health effects of the radiation delivered by the exam.

February 2, 2009

Confocal microscopy could reduce polypectomies

Optical colonoscopy could become safer, and polypectomies fewer, with the advent of a supermagnifying endoscope that can distinguish between benign hyperplastic lesions and potentially dangerous adenomas without removing them from the patient.

January 29, 2009

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Interobserver variability generally low at lung screening follow-up

Radiologists who perform CT follow-up screening of smokers generally agree on whether a nodule has grown at follow-up and whether the case should be considered positive or negative, according to a study of subjects screened twice in the National Lung Screening Trial. But there was less agreement on what should be done with the results.

January 27, 2009

Absolute calcium score better predictor than age-, sex-, race-adjusted scores

For assessing the risk of coronary events, the absolute calcium score is a far better predictor of adverse coronary events than an adjusted score based on mean values of the patient's particular demographic group.

January 22, 2009

Adding delayed CT aids some trauma diagnoses

In the emergency setting, would the routine acquisition of a delayed scan five minutes after contrast lead to better diagnoses of trauma patients? It pays sometimes but not always to acquire the extra scan, say researchers from Italy, who reviewed images from hundreds of cases of organ injuries.

January 20, 2009

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Need for VC colon screening trumps physician turf battles

SAN FRANCISCO - Virtual colonoscopy is safe and cost-effective and should be implemented for widespread colorectal cancer screening despite the inevitable turf struggles that arise between physician subspecialties, according to the radiologist who led the multicenter National CT Colonography Trial.

January 19, 2009

Ultrasound screens for pancreatic cancer in high-risk populations

SAN FRANCISCO - Ultrasound detected small pancreatic cancers even CT and MRI couldn't visualize in a novel Dutch screening program aimed at high-risk patients with a family history of the disease. The researchers hope to transform their pilot study into a multicenter trial aimed at finding pancreatic cancer in high-risk patients while it's still resectable.

January 18, 2009

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MR colonography separates benign from malignant colonic strictures

Dynamic contrast-enhanced MR colonography can readily distinguish benign from malignant strictures of the colon, according to Danish researchers. They said the technique could solve a diagnostic dilemma in patients with suspected colorectal cancer lesions that prevent them from undergoing conventional colonoscopy before surgery.

January 15, 2009

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Study warns VC could leave high-risk polyps unresected

Researchers who analyzed a large database of resected colon polyps concluded that the American College of Radiology's policy of ignoring diminutive polyps detected at virtual colonoscopy could lead to as many as 30% of patients with "high-risk findings" being read as normal on VC exams.

January 13, 2009

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Chest x-rays reveal atherosclerosis in patients undergoing amputations

Lower limb amputation is an increasingly common major complication of advanced peripheral arterial disease and diabetes mellitus.

Cardiac Mri Adobe Samunella

3D MRI technique helps plan treatment for pediatric heart conditions

Images of a 39-year-old who underwent screening mammography. Right craniocaudal (left) and mediolateral oblique (middle) views from preoperative mammography show suspicious grouped fine pleomorphic calcifications (arrows). After biopsy showed ductal carcinoma of situ (DCIS), patient underwent breast-conserving surgery, yielding final diagnosis of ductal carcinoma in situ (intermediate grade, hormone receptor positive). (Right) Screenshot of an output of a commercial AI tool applied to preoperative mammography. AI detected right breast lesion with score of 95% on both views (concentric colored circles). Present study’s reviewing radiologist deemed AI marking to correspond with site of DCIS.

Could AI scoring help with managing DCIS?

Axial contrast-enhanced CT scan in a 28-year-old premenopausal woman shows an incidentally detected solid-appearing left ovarian lesion (solid arrow) anterior to the uterus (U), associated with trace ascites in the right adnexa and cul de sac (dashed arrows). At pathologic analysis, this was shown to be ovarian dysgerminoma. Two readers misdiagnosed this lesion, one as a leiomyoma and one as an ovarian fibroma.

Clinicians, beware: CT diagnostic accuracy varies by adnexal lesion type

Erin Stephens

Radiology coding update for 2026

Social factors affect adherence to incidental lung nodule follow-up

By Kate Madden Yee

Social factors affect whether patients who are found to have incidental lung nodules on chest CT imaging adhere to follow-up, according to recent research.

March 11, 2024

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Cannabis may influence bowel motility

Physicians, health care providers, and medical staff caring for patients who use cannabis should be familiar with the effects of the drug on gut motility, a recent report advises.

March 11, 2024

Does breast radiation therapy raise risk of skin cancer?

By Amerigo Allegretto

Radiation therapy for breast cancer treatment leads to an increased risk of skin cancer, according to a recent study.

March 11, 2024

Skin Cancer 400

4D MRI reveals characteristics of impaired heart blood flow

By Kate Madden Yee

Whole-heart 4D flow and short-axis cine MRI reveal characteristics associated with impaired blood flow in the left atrial chamber of the heart, according to a recent study.

March 8, 2024

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Study calls for continuous improvement of AI algorithms

An external validation study conducted in a primary care clinic in Spain has demonstrated the value – as well as important limitations – of AI software for interpreting chest x-rays in clinical practice.

March 8, 2024

Image of patient (upper-left) in which, according to the radiologist's report, there is only consolidation, but the algorithm detects an abnormal rib (upper-right), consolidation (lower-left), and two nodules (lower-right). It is worth noting the confusion of a consolidation with mammary tissue and of two nodules with the two mammary areolae. Image courtesy of Scientific Reports.

Is semiannual mammo after breast conserving surgery necessary?

By Amerigo Allegretto

Annual mammography with a clinical exam is enough for women who underwent breast-conserving surgery and were treated with neoadjuvant therapy.

March 8, 2024

Hold off on the Egg McMuffins before GES tests, experts say

Nuclear medicine technologists are being advised that not just any meal works for patients before gastric emptying scintigraphy (GES).

March 7, 2024

MRgFUS shows promise in treating prostate cancer

By Amerigo Allegretto

MRI-guided focused ultrasound (MRgFUS) therapy can successfully treat prostate cancer for those at intermediate risk.

March 7, 2024

Images depict biopsy-confirmed prostate cancer in a 56-year-old man. (A) Pretreatment axial T2-weighted fast spin-echo MRI scan and (B) apparent diffusion coefficient map acquired with a 3T scanner show the tumor in the left transition zone (arrows). (C) Intraoperative 1.5-T MRI scan shows the contoured rectal wall (red line), prostate margin (blue outline), and region of interest (orange outline). (D) Intraoperative MRI scan shows a focused ultrasound beam path (blue) overlaid on the treatment plan. The rectangular boxes show each sonication spot. (E) Thermal map obtained during treatment shows heat deposition color-coded in red and overlaid on the sonication spot. (F) Axial gadobutrol-enhanced MRI scan obtained immediately after treatment shows the devascularized ablated volume (arrows). (G) Corresponding T2-weighted fast spin-echo 3T MRI scan obtained at 24 months after ablation shows fibrosis and volume loss in the left transition zone (arrows). Findings from a biopsy showed scar tissue, negative for malignancy at the treatment site.

IMV: PET scan volumes continue to grow

By Davin Korstjens

The total volume of PET scans increased 10.2% year over year in 2023, according to the newly published IMV 2024 PET Market Summary Report.

March 7, 2024

CAC score may predict heart attack, stroke risk

By Kate Madden Yee

Coronary artery calcium (CAC) scoring with CT could determine whether patients with heart disease symptoms are at low risk of heart attacks or strokes.

March 6, 2024

CEUS shines in diagnostic, interventional settings

By Amerigo Allegretto

Contrast-enhanced ultrasound (CEUS) is a problem-solving tool useful in interventions, according to a presentation given at ECR 2024.

March 6, 2024

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PET lung scan times could be cut by half

Dynamic PET scans acquired in half the time of normal scans appear clinically feasible for patients with lung lesions.

March 6, 2024

A 60-year-old male patient with clinical suspicion of lung cancer. PET/CT scan showed FDG-avid pulmonary nodules in the upper lobe of the left lung (red arrow), with a size of 2.2 × 1.3 cm, SUVmax of 12.2, Ki-65 min of 0.016 ml/g/min, and Ki-30 min of 0.014 ml/g/min. Surgical pathology confirmed a granulomatous lesion. In addition, PET/CT scan showed many FDG-avid lung nodules in the mediastinum. (A, static PET maximum intensity projection; B, static PET SUV image; C, static PET/CT fusion image; D, dynamic PET Ki-65 min image; E, dynamic PET Ki-30 min image). Image courtesy of EJNMMI Physics.

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