Eric Barnes

[email protected]

High accuracy but inhomogeneous tagging seen in prepless VC

Belgian researchers are clearly catching up to the Italians in the art of prepless virtual colonoscopy, a technique that enhances patient comfort but adds work to the radiologist's day. In a modestly polyp-rich cohort, the Belgians achieved 100% sensitivity for lesions 10 mm and larger, using optical colonoscopy as their reference standard.

December 5, 2006

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Radiation dose can add up in CT stroke imaging

CHICAGO - Even for indications as serious as suspected stroke, doctors should be aware of the radiation doses being delivered with the multiple CT exams typically delivered during the course of care. The cumulative dose from an initial noncontrast CT scan followed by a CT perfusion study, for example, isn't easy to assess. But a new study from Germany could lead to better dose control and safer scanning.

November 30, 2006

2006 11 30 14 51 00 706

Overdiagnosis may plague CT lung screening results, especially in women

CHICAGO - A just-concluded five-year lung cancer screening study found that tumor doubling times can be very long in nearly a quarter of female patients, suggesting that overdiagnosis may be a stronger factor than previously believed, at least in women.

November 28, 2006

Image Processing

MDCT finds cause of acute abdomen more often with MPR

CHICAGO - The use of multiplanar reconstructions (MPRs) can help identify the site, level, and cause of acute abdominal diseases when transverse multidetector-row (MDCT) findings are indeterminate, according to research presented on Tuesday at the 2006 RSNA meeting.

November 28, 2006

Prepless VC finds more polyps with stool subtraction

CHICAGO - A clinical study presented Monday at the 2006 RSNA meeting found that electronic stool subtraction helped radiologists find more medium-sized polyps with prepless virtual colonoscopy, although it also added a few false positives and reduced specificity.

November 27, 2006

Molecular Imaging

PET, CT CAD scheme differentiates benign from malignant lung nodules

CHICAGO - PET has a well-established role for distinguishing benign from malignant lung nodules when CT is inconclusive. Now radiologists have tapped the power of artificial neural networks (ANNs) for a computer-aided detection (CAD) scheme that determines whether PET results can improve the performance of CT-based lung CAD.

November 27, 2006

VC CAD face-off reveals system differences

CHICAGO - To assess sensitivity and false-positive rates for colon computer-aided detection (CAD) as a second reader, researchers from Berlin pitted three colon CAD) systems against each other. They presented their findings on Sunday at the 2006 RSNA meeting.

November 26, 2006

Cardiac CT yields significant extracardiac findings

CHICAGO - Cardiac CT yields a high number of incidental findings, many of them clinically important, according to a study presented Sunday at the 2006 RSNA meeting. Researchers from the Medical University of South Carolina in Charleston analyzed 964 CT cardiac imaging studies acquired over a two-year period.

November 25, 2006

VC deflation maneuver reduces pain

Researchers from the University of Chicago have come up with a reliable way to reduce the discomfort of colonic insufflation needed to perform virtual colonoscopy. The results of a preliminary study show that the deflation maneuver is so reliable that the radiologists have made it standard practice in their department.

November 20, 2006

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Cardiac CT evolves on multiple fronts

The march of cardiac CT into clinical practice has been impressive, driven by the rapid growth in the number of detector rows and by the fast, sharp images the modality is capable of producing. Less frequently heard is that cardiac CT is still a work-in-progress with a few technical hurdles left to jump. Dr. Mario Garcia from the Cleveland Clinic Foundation discusses CT's strengths, weaknesses, and future directions in heart imaging.

November 19, 2006

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Alz D

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

Bone health assessed among transgender adults

Puberty suppression treatment in transgender adolescents followed by long-term gender-affirming hormones appears safe for bone health.

November 1, 2023

ACS releases updated lung cancer screening guideline

By Kate Madden Yee

The American Cancer Society (ACS) has released an updated lung cancer screening guideline.

November 1, 2023

Lung Cancer Ct 3d 400

Team calls for 'village' approach for tackling breast cancer inequities

By Amerigo Allegretto

Researchers are calling for a "village" approach for tackling breast cancer disparities.

November 1, 2023

Delaware leads the U.S. in the incidence of triple-negative breast cancer and advanced breast cancer diagnosed at a younger age, ChristianaCare researchers highlighted. Areas of higher intensity, which are visualized in this map with brighter shades of red, have higher historical rates of triple-negative breast cancer diagnosed at an advanced stage among women younger than 50 years relative to other areas within New Castle County, Delaware.

Ultrasound features tied to thyroid microcarcinoma tumor growth

By Amerigo Allegretto

Ultrasonic features are tied to increased risk of tumor progression in patients with papillary thyroid microcarcinoma undergoing surveillance.

November 1, 2023

Progression of hypervascular tumor with lymph node metastasis in a 64-year-old male participant with papillary thyroid microcarcinoma. (A-C) Baseline ultrasound images. (A) Transverse gray-scale image shows a solid hypoechoic thyroid nodule (arrow) with a maximal diameter of 7 mm. (B) Color Doppler image shows hypervascularity, represented by increased vascularity above that of normal thyroid parenchyma (arrows). (C) Transverse gray-scale image shows a small, probably benign lymph node at left level IV (arrow). (D) Transverse ultrasound image at 12-month follow-up demonstrates a suspicious lymph node (arrow) with increased shortest diameter and punctate echogenic foci (arrowhead). Subsequent fine-needle aspiration for this level IV lymph node revealed a metastatic thyroid papillary carcinoma. Image courtesy of Radiology.

AI boosts radiologist perception training

A team in Europe has launched a novel web application to help radiology trainees gain skills in detecting lung nodules on chest x-rays.

October 31, 2023

Screenshots of the imaging viewer interface before (a-b) and after (c-d) having clicked “Review placed markers.” The “Case assessment widget” has been magnified in (b,d). One marker was incorrectly placed (c), which is signified with a red cross. One nodule was not identified (c) and was highlighted by a yellow circle through the mouse over function in the “List of synthetic lesions.” Image courtesy of the British Journal of Radiology.

Abdominal fat CT radiomics help predict liver cancer recurrence

By Kate Madden Yee

CT radiomics features identified from abdominal fat and muscle tissue can help predict early recurrence of liver cancer after surgery, researchers have found.

October 31, 2023

Fat Tissue Adipocytes 400

Microflow imaging useful in diagnosing breast lesions

By Amerigo Allegretto

Microflow imaging can differentiate between benign and malignant breast lesions.

October 31, 2023

Breast Cancer Cell2 400

FAPI-PET bests FDG-PET in detecting gastrointestinal cancer

Fibroblast activation protein inhibitor (FAPI)-PET/CT appears superior to standard FDG-PET/CT for detecting gastrointestinal cancer.

October 31, 2023

Nine representative patients who underwent F-18 FDG and F-18 FAPI-74 PET imaging. F-18 FAPI-74 PET outperforms F-18 FDG-PET in detecting primary tumors (patients 11, 39, 50, 58, 79, and 101; solid black arrows), local recurrences (patient 4; blue arrows), abdomen LN metastases (patients 4 and 50; green arrows), intrahepatic metastases (patient 50; red arrows), bone metastases (patient 85; arrowheads), and peritoneal metastases (patients 4, 11, 85, 97, and 101; dotted arrows). Image courtesy of the Journal of Nuclear Medicine.

3D imaging modeling cost-effective for pediatric surgery

By Amerigo Allegretto

3D anatomical modeling using advanced imaging software can be cost-effective in planning pediatric surgeries.

October 31, 2023

Virtual Reality Brain Surgeons 400

PET brain study: More research needed in former NFL players

PET imaging shows high levels of brain protein activity associated with injury in a large group of young, former National Football League (NFL) players.

October 30, 2023

Mean parametric maps of carbon-11 (C-11) DPA-713 radiotracer binding (VT) are presented in three views for each group (NFL, control) within each TSPO genotype (C/C, C/T). VT indicates total distribution volume and is in units of milliliters per cubic centimeter (mL/cm3). Image courtesy of JAMA Network Open.

PCCT offers multiple benefits for imaging pediatric patients

By Kate Madden Yee

Photon-counting CT (PCCT) has much to offer when it comes to pediatric imaging, according to a review article published October 25.

October 30, 2023

Diverse Kids 400

PCN placement leads to greater radiation exposure for pregnant women

By Amerigo Allegretto

Initial percutaneous nephrostomy (PCN) tube placement leads to more radiation exposure for pregnant women with suspected kidney stones.

October 30, 2023

Kidney Stone 400

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