Eric Barnes

[email protected]

Low-energy, high-current CT nabs tiny liver lesions

LAS VEGAS - Dual-energy CT using different tube energy (kVp) settings can be used to distinguish imaging targets with similar densities but different attenuation properties, thereby increasing the conspicuity of contrast-enhanced lesions.

May 14, 2008

2008 05 14 19 55 53 706

Clinically significant contrast-induced nephropathy rare

LAS VEGAS - Retrospective studies have shown that contrast-induced nephropathy (CIN) following CT occurs in about 1% to 12% of patients undergoing contrast-enhanced CT. These studies also demonstrate an association between CIN and mortality. However, a new prospective study presented at the 2008 International Symposium on Multidetector-Row CT found that contrast-enhanced CT can be safely performed in most patients with chronic kidney disease.

May 13, 2008

GE focuses on high-res CT with launch of LightSpeed CT750 scanner

GE Healthcare is announcing today the commercial launch of LightSpeed CT750 HD, a new CT scanner that the Chalfont St. Giles, U.K.-based company believes breaks new ground in high-resolution imaging. The 64-slice system incorporates a battery of technical innovations aimed at boosting image quality from top to bottom, particularly in body imaging.

May 12, 2008

2008 05 12 12 50 25 706

MRI edges out CT in postinfarct myocardial studies

Addressing the important question of myocardial viability after reperfusion therapy, a new study found that higher contrast-to-noise ratios gave cardiac MRI an edge over 64-slice CT. The study compared 64-slice CT and cardiac MRI for assessing myocardial enhancement and infarct size early after acute reperfused myocardial infarction.

May 7, 2008

VC CAD finds polyps in prepped or unprepped patients

The emergence of preparation-independent computer-aided detection (CAD) for virtual colonoscopy is a sure sign of the growing sophistication of the software. Researchers from Boston recently reported on an investigational CAD scheme that successfully analyzed both cleansed and uncleansed patients, tagged and untagged cases, to detect colorectal polyps and distinguish them from fecal material.

May 5, 2008

2008 05 06 08 31 38 706

Ground-glass nodule features on CT reveal malignancy risk

Researchers are peering through a proverbial glass, darkly, to study the features of ground-glass opacities (GGOs). GGOs are being detected with increasing frequency as more thin-section CT lung scans are performed to check for cancer in smokers and former smokers. Distinguishing benign from malignant GGOs is a hit-or-miss task for CT, one that could potentially improve if researchers are able to find reliable signs of malignancy or benignity, thereby reducing the need for invasive biopsy.

April 28, 2008

2008 04 29 09 14 27 706

Coronary CTA interpretation skills improve slowly

Trained but inexperienced readers of coronary CT angiography (CTA) studies improved their performance significantly over a year's time, though they fell short of expert readers' results, according to a study from Erasmus University Medical Center in Rotterdam, Netherlands. The study suggests that coronary CTA training programs lasting less than one year may be too short.

April 27, 2008

CT shows gallbladder rupture in acute cholecystitis

The accurate diagnosis of gallbladder rupture with acute cholecystitis is key to arranging timely surgery and preventing serious outcomes. But the condition often goes undiagnosed until it's too late. CT can help save lives by reliably detecting ruptures presurgically if clinicians look for the signs, according to researchers from Taiwan.

April 22, 2008

2008 04 22 16 44 00 706

False-positive CAD marks don't hinder VC readers' accuracy

Technology may get top billing in developing computer-aided detection (CAD) schemes, but psychology also plays a leading role. In a new study, U.K. researchers assessed the effects of false-positive CAD detections on virtual colonoscopy reader specificity and reporting times in a patient population with a low prevalence of cancer.

April 20, 2008

2008 04 15 11 19 56 706

Minimal-prep VC may miss more flat lesions

Virtual colonoscopy achieved high overall sensitivity in a three-part study that examined patients with minimal-prep VC, then standard-prep VC and conventional colonoscopy. But the tagged, minimal-prep protocol tended to miss more flat lesions, according to the researchers.

April 16, 2008

2008 04 16 14 44 30 706

Page 162 of 258

New benchmark helps monitor cumulative CT radiation dose

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

2026 02 13 Port Fractures Thumbnail

Study questions routine use of radiotherapy after bone surgery

2026 02 12 Wfumb Sertic Ceus Kidney Lesions Thumbnail

CEUS outshines color Doppler imaging for indeterminate kidney lesions

Minnie Cast Thumbnail (1) 1

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

2026 02 12 Chest Ac2 Thumbnail

Chest x-rays reveal atherosclerosis in patients undergoing amputations

Pluvicto prostate cancer treatment protocols vary globally

An international survey of treatment centers has revealed significant differences in several aspects of Lu-177 PSMA-617 prostate cancer therapy.

January 23, 2024

Elastography tracks stiffness changes in breast implants

By Amerigo Allegretto

Shear-wave elastography could be used as an indicator of breast implant rupture risk.

January 23, 2024

(A) Examples of B-mode images for the measurement of membrane thickness of implants from each of the four types of implants. Images are presented at the same scale. Membrane thicknesses (B) and then shear moduli measured by ARFI method (C) are compared without dissociation as a function of prosthesis age or implantation time. (NS: p-value > 0.05, *: p-value < 0.05, **: p-value < 0.01, ***: p-value < 0.001). Images are available for republishing under a Creative Commons license (CC BY-NC-ND 4.0 Deed) and courtesy of the Journal of Biomechanics.

PET imaging reveals brain activity related to alcohol addiction

PET scans have revealed for the first time what may be a key molecular driver of stress and addiction in people with alcohol use disorder.

January 23, 2024

MRI (top panel) and coregistered F-18 AS2471907 PET images of a healthy control (middle panel) and an age- and sex-matched individual with AUD (bottom panel). Image courtesy of Neurobiology of Stress.

ChatGPT shows potential for assisting in bone tumor diagnosis

By Kate Madden Yee

ChatGPT shows potential in identifying malignant bone tumors on CT imaging, according to a new study.

January 23, 2024

Chat Gpt Artificial Intelligence Ai Head

Psychosocial factors influence mammography adherence

By Amerigo Allegretto

Psychosocial factors influence how women adhere to breast cancer screening recommendations.

January 23, 2024

Woman Tired 400

Few ‘surprise’ patient bills are from radiologists, study finds

Out-of-network billing by radiologists – often referred to as “surprise billing” – dropped significantly beginning in 2007 and imaging claims are now almost completely in network.

January 22, 2024

PET/CT improves diagnostic biopsy rates in lung cancer patients

PET/CT imaging can serve as a metabolic guide to increase the accuracy of needle biopsies in patients with suspicious lung nodules.

January 22, 2024

Patient with extensive lung and pleural disease. (2a) The PET/CT was available prior to the biopsy showing heterogeneous F-18 FDG radiotracer uptake and delineating the most accessible area of increased metabolic activity. (2b) The biopsy was targeted to the area of increased activity area and was positive for malignant diagnosis. Image courtesy of the European Journal of Radiology.

TVUS-detected endometriosis lowers live birth odds in first fertility treatment

By Amerigo Allegretto

Deep infiltrating endometriosis on transvaginal ultrasound decreases the chance for a live birth in women undergoing their first fertility treatment.

January 22, 2024

Endometriosis 3 D Illustration 400

Personal interest drives radiology residents to pursue fellowship

By Amerigo Allegretto

Personal interest and enjoyable rotations are key factors in diagnostic radiology residents making their decision to pursue fellowship.

January 22, 2024

Doctor Student Nurse Medical Personnel 400 (1)

Deep learning combines breast imaging data to predict cancer prognosis

By Amerigo Allegretto

Deep-learning models could have potential as predictive tools for breast cancer prognosis.

January 19, 2024

Breast Mammo Computer 400

PET/CT scans show value in patients with rare type of pancreatitis

F-18 FDG-PET/CT scans may help predict relapses in patients with autoimmune pancreatitis.

January 19, 2024

F-18 FDG-PET/CT images of patients. (A) Image of a 61-year-old male patient with type 1 autoimmune pancreatitis (AIP) demonstrating diffuse enlargement of the pancreas (arrows). The serum IgG4 level was 2,260.0 mg/dL, and the TLG2.5 was 413.8 g/ml×cm3. According to the nomogram, his relapse probability is more than 95%. The patient discontinued steroid use during the maintenance phase, and 7 months later, he relapsed, with imaging showing diffuse re-enlargement of the pancreas. (B) Image of a 60-year-old male patient with type 1 AIP, showing focal enlargement in the head of the pancreas (arrows). The serum IgG4 level was 980 mg/dL, and the TLG2.5 was 92.7.0 g/ml×cm3. According to the nomogram, the patient’s relapse probability is less than 50%. After symptom relief, the patient did not receive maintenance treatment, and has been followed up for 4 years without relapse. Image courtesy of BMC Gastroenterology.

Medical students gain confidence in radiology boot camp

Undergraduate medical students were eager to participate in an elective one-week radiology boot camp, with participants reporting the experience boosted their radiology knowledge as well as their confidence in other specialties.

January 19, 2024

Page 162 of 202