Eric Barnes

[email protected]

VC not cost-effective in FOBT-positive screening population

Patients with positive screening results on fecal occult blood tests (FOBTs) should probably head straight to optical colonoscopy for their next exam, according to a new study from the Netherlands. Virtual colonoscopy may not be cost-effective in this population because so many FOBT-positive patients would need referral for polypectomy anyway, the researchers said.

May 7, 2009

Higher skin radiation dose seen in angiography vs. coronary CTA

Radiation dose measured at the skin is higher and overall effective doses more variable with conventional angiography compared to coronary CT angiography (CTA), say researchers from the Medical University of South Carolina.

May 3, 2009

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Biological dose measures promise new view of cardiac imaging risk

The development of biological radiation dose measurement portends a future of far greater accuracy in gauging the damage wrought by ionizing radiation in imaging exams. Two studies, focused on cardiac CT and conventional angiography exams, respectively, offer the potential of maximizing image quality while minimizing the potential radiation risk to the patient.

April 30, 2009

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VC's high positive predictive value important for colonoscopy follow-up

If virtual colonoscopy is to function effectively as a screening tool, it must not only deliver consistently high sensitivity for clinically relevant lesions, but also show a low number of false positives and a high degree of concordance with optical colonoscopy. Fortunately, VC appears to be keeping its end of the bargain, according to new research.

April 29, 2009

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Cardiac Imaging

AuntMinnie.com Cardiac Imaging Insider

April 26, 2009

VC finds serious extracolonic lesions in older patients

Extracolonic abnormalities occur more frequently among older and symptomatic patients, and are more cost-effective to detect in these populations, according to researchers from Korea. Their multicenter study examined a large screening cohort with virtual colonoscopy using a variety of exam techniques.

April 21, 2009

Advanced Visualization

VC CAD plus 3D improves sensitivity for novice readers

Computer-aided detection (CAD) with 3D viewing improves sensitivity for polyp detection among less experienced readers, and may also speed up reading times and reduce false-positive detections. On the other hand, the performance of experienced readers did not improve significantly with CAD use, researchers from the University of Rome concluded.

April 20, 2009

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Image-Guided Surgery

Lung tumor ablation improved with microwave versus RF technique

Microwave ablation of lung tumors outperforms the more established radiofrequency (RF) ablation technique, according to a new study published in Radiology from the University of Wisconsin. Analysis of gross pathology and CT images found that microwave ablation created larger, more uniform circular zones around ablated regions of normal porcine lungs.

April 16, 2009

Tube current modulation cuts triple rule-out CTA dose

Tube current modulation can substantially reduce the radiation dose of so-called triple rule-out scans, an increasingly popular test for patients presenting with chest pain and suspected acute coronary syndromes (ACS), according to researchers from Thomas Jefferson University in Philadelphia.

April 14, 2009

VC CAD plus electronic cleaning boosts sensitivity, false positives

Computer-aided detection (CAD) of colorectal polyps combined with electronic cleansing of tagged data is a promising but technically daunting approach to finding more polyps in virtual colonoscopy. In a new Korean study, electronic cleansing slightly increased the sensitivity of CAD but more than doubled the number of false-positive detections.

April 9, 2009

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Ai Hand

LLMs rapidly evolving in nuclear medicine

Large language models (LLMs) are widely used to handle the large volume of text data generated in nuclear medicine.

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DWI with fat correction identifies liver scarring in MASLD patients

Emergency Sign

Ghost scans problematic in POCUS trauma exams

Prostate Imaging

PSMA-PET may require selective use to be cost-effective

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Endobronchial ultrasound good for pulmonary hypertension screening

By Amerigo Allegretto

Endobronchial ultrasound may be used as a screening test for pulmonary hypertension in high-risk patients.

December 18, 2023

Ultrasound Diagnostic Control Panel 400

Bone scans support high-velocity resistance training in older adults

Dual-energy x-ray absorptiometry scans show that high-velocity resistance training increases bone mineral density in older adults.

December 15, 2023

AI shows promise detecting TB in Zambia

An AI algorithm developed by Google shows potential as a scalable triage test for active pulmonary tuberculosis (TB) in settings with limited resources.

December 14, 2023

Researcher talks radiologist productivity study with AuntMinnie.com

By Amerigo Allegretto

Aditya Khurana, MD, from the Mayo Clinic in Rochester, MN, discussed results from a study he presented at RSNA 2023 on radiologist productivity.

December 15, 2023

MRI radiomics features help predict Alzheimer's progression

By Kate Madden Yee

Adding MRI features to clinical ones in a machine learning model can help predict the progression of Alzheimer's disease among those with early disease, according to a study published on December 13 in Alzheimer's & Dementia.

December 14, 2023

Brain Puzzle Stars 400

Safety net hospital provides equitable care in breast screening

By Amerigo Allegretto

Safety net hospitals provide equitable care in breast cancer screening in terms of race and ethnicity.

December 14, 2023

Breast Mammography Tech

Benign breast disease found on percutaneous biopsy ups cancer risk

By Amerigo Allegretto

Benign breast disease diagnosed through percutaneous biopsy increases the overall risk of developing breast cancer.

December 13, 2023

Breast Cancer Cell2 400

AI improves x-ray reads for rads with varying experience

AI assistance can improve the detection accuracy of thoracic abnormalities on chest x-rays across radiologists with varying levels of expertise.

December 13, 2023

AI detected a lung mass, a lung nodule, and a small pneumothorax. Without AI assistance, only one thoracic radiologist and one general radiologist detected all abnormalities, whereas with AI assistance, one thoracic radiologist, two general radiologists, and one resident detected all abnormalities. Corresponding coronal and axial CT images show the lung mass (arrows), the lung nodule (white arrowheads), and the small pneumothorax (black arrowheads) that should have been detected on the chest radiograph. Image courtesy of Radiology.

Short MRI protocol effective for assessing liver cancer treatment

By Kate Madden Yee

A short MRI protocol is just as effective for assessing liver cancer treatment as a complete one, according to research highlighted at the recent RSNA meeting.

December 13, 2023

Liver Cancer 400

Opportunistic low-dose CT lung cancer screening reduces mortality

By Kate Madden Yee

Opportunistic low-dose CT lung cancer screening can reduce mortality from the disease by almost 50%, recent research has found.

December 12, 2023

Lung Cancer Ct 3d 400

Nonphysician providers often used in pediatric radiology settings

By Amerigo Allegretto

A survey study described current workforce trends in pediatric radiology, including the use of nonphysician providers in the area.

December 12, 2023

Diverse Children 400

AI predicts responses in patients with prostate cancer

An AI model based on F-18 DCFPyL PSMA-PET/CT images shows promise for predicting treatment response in patients with metastatic castration-resistant prostate cancer.

December 12, 2023

Prostate Cancer

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