Wayne Forrest

AI
RSNA names Kahn to head AI publication
The RSNA has named Dr. Charles Kahn Jr. as editor of the new online journal Radiology: Artificial Intelligence. The society plans to launch the journal early next year as a showcase for research in the burgeoning field of artificial intelligence (AI), deep learning, and machine learning.
May 1, 2018
2018 05 02 17 31 3108 Kahn Charles 20180502170702
MRI
MRI reveals effect of mild TBI on brain white matter
An MRI technique aimed at quantifying changes in myelin content revealed that athletes who have a mild traumatic brain injury (TBI) can experience changes to their brain white matter that are still evident months later, according to a preliminary study published online May 1 in the Journal of Neurosurgery.
May 1, 2018
2018 05 01 23 19 1927 Myelin Tbi Image 20180501230542
MRI
MRA reveals atherosclerosis in many low-risk patients
Approximately half of patients considered to have a low risk of developing atherosclerosis showed at least one narrowed artery on whole-body MR angiography (MRA) exams in a study published online May 1 in Radiology.
April 30, 2018
2018 05 01 16 23 6497 Rsna Srn May 1 Mra 20180501161950
Nuclear Medicine
PiB-PET study strengthens link between amyloid, dementia
The presence of amyloid on PET scans may be a sign that adults with no symptoms of dementia are still at risk of mild cognitive impairment or even Alzheimer's disease in the future as they age, according to a study published online April 30 in JAMA Neurology.
April 30, 2018
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MRI
fMRI shows dementia patients' brain response to music
Functional MRI (fMRI) has shown that when you get an uplifting feeling from listening to music, the reaction is due to increased connectivity between certain networks in the brain, according to a study published online April 27 in the Journal of Prevention of Alzheimer's Disease.
April 26, 2018
2018 04 27 16 25 3738 F Mri Music Brain Networks 20180427164405
Nuclear Medicine
Can nuclear medicine avoid another Mo-99 shortage?
Major changes are taking place in the intricate network that supplies healthcare providers around the world with molybdenum-99 (Mo-99), a key radioisotope for nuclear medicine studies. The question is, can the nuclear medicine community avoid another devastating shutdown like the one that occurred in 2009?
April 26, 2018
2018 04 24 20 24 4264 Isotope 400
Residents/Fellows
ARRS: Feedback system helps improve resident reporting
WASHINGTON, DC - A quality improvement system that audits radiology reports and provides feedback to residents helped them lower error rates while also improving workflow and reducing delayed payments, according to a study presented on Wednesday at the American Roentgen Ray Society (ARRS) meeting.
April 25, 2018
2017 01 31 14 35 01 124 Doctor Stressed 400
Nuclear Medicine
AuntMinnie.com Molecular Imaging Insider
April 24, 2018
MRI
ARRS: DTI-MRI shows brain damage from cocaine use
WASHINGTON, DC - MRI scans with a diffusion-tensor imaging protocol (DTI-MRI) are helping to illustrate microstructural changes in the brain's white matter in people with cocaine use disorder, according to a study presented on Tuesday at the American Roentgen Ray Society (ARRS) meeting.
April 24, 2018
2018 04 24 22 49 3047 Arrs Dti Cocaine Axial Montage 20180424225527
Breast
ARRS: Added radiation exposure from DBT is within limits
WASHINGTON, DC - While digital breast tomosynthesis (DBT) increases radiation exposure for women when used with digital mammography for screening, the combined dose remains well within safety standards, according to a study presented on Monday at the American Roentgen Ray Society (ARRS) meeting.
April 23, 2018
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MRI
fMRI: Cognitive behavioral therapy positively affects the brain
The findings confirm the efficacy of the treatment, researchers have reported.
Radiological Report 400
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Post Cures Act, outpatients access radiology reports faster
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MRI may help guide brachial plexus surgery
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Should hospitals pursue local domain LLM adaptation for radiology reports?
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MRI model predicts breast tumor shrinkage patterns
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LI-RADS ultrasound surveillance version 2024 improves HCC detection
By Amerigo Allegretto
The 2024 version of the LI-RADS Ultrasound Surveillance system improves detection of hepatocellular carcinoma (HCC) over earlier iterations.
January 22, 2025
(A,B) Images from an initial ultrasound examination showed no identifiable lesions and received a consensus ultrasound category of US-1. Nearly the entire liver is visualized, with minimal shadowing (“s”, A and B), and the examination received consensus result of VIS-A. The AFP level was 7.1 ng/mL on assessment six months before the ultrasound, 9.1 ng/mL on assessment three months before examination, and 14.2 ng/mL on assessment on exam day. The AFP result was thus assessed as positive based on a progressive increase on two consecutive tests. The atient was considered to have negative surveillance result according to LI-RADS Ultrasound Surveillance v2017, but positive surveillance result according to LI-RADS Ultrasound Surveillance v2024. (C-D) Axial arterial-phase (C) and portal-venous phase (D) T1-weighted images from subsequent gadoxetic acid-enhanced MRI show a 2-cm arterial-phase hyperenhancing observation (arrow, C) with portal-venous washout (arrow, D) in segment 7. This observation was classified on MRI as LR-5, thus meeting the present study’s reference standard for diagnosis of HCC. The mass is located in the periphery of the liver, an anatomic area where ultrasound visualization can be challenging due to shadowing.
Deep learning helps find, segment lung tumors on CT imaging
By Kate Madden Yee
Using a deep-learning model with lung CT imaging shows promise for identifying and segmenting tumors, researchers have reported.
January 22, 2025
Lung Ct Images
EVT promising in patients with extracranial ICA occlusions
By Will Morton
Endovascular thrombectomy (EVT) and best medical treatment are both effective and safe options for patients with acute extracranial internal carotid artery occlusions.
January 21, 2025
Images in a 74-year-old male patient who presented at the hospital with acute symptoms of a right hemispheric ischemic stroke and a National Institutes of Health Stroke Scale (NIHSS) score of 24. (A) Nonenhanced CT image shows no signs of early infarction, whereas (B) CT perfusion image shows a large perfusion deficit in the territory of the middle cerebral artery and anterior cerebral artery caused by an extracranial occlusion in the right internal carotid artery. (C) Digital subtraction angiography shows the occlusion in the C1 segment. The extracranial occlusion was passed, reperfused, and subsequently stented (D, E). The final contrast injection did not reveal any intracranial occlusions within the territory of the internal carotid artery (F). At the 24-hour follow-up, there was no infarction on (G) the nonenhanced CT image, and the NIHSS score had decreased to 3 points. Image courtesy of RSNA.
CEUS resolves indeterminate CT, MRI liver observations
By Amerigo Allegretto
Contrast-enhanced ultrasound (CEUS) can resolve some high-risk indeterminate liver observations initially seen on CT or MRI.
January 21, 2025
Images depict a 49-year-old female participant with cryptogenic cirrhosis who presented with a 3.2-cm liver lesion. This biopsy-confirmed hepatocellular carcinoma (HCC) with an initial categorization of Liver Imaging Reporting and Data System (LI-RADS) category LR-4 (probably HCC) at CT was upgraded to LR-5 (definitely HCC) at contrast-enhanced ultrasound (CEUS). (A) Precontrast CT images in the liver show vague hypoattenuation in the medial left hepatic lobe (arrows). (B) Arterial phase images demonstrate no definite arterial phase hyperenhancement (arrows). (C) Washout and an enhancing capsule (arrows) on a late-phase image resulted in an LR-4 categorization. (D) B-mode ultrasound shows a round hypoechoic nodule (arrows). (E) An early-phase CEUS image shows clear arterial-phase hyperenhancement (arrows); (F) No washout at one minute (arrows), and (G) late, mild washout at four minutes (arrows) resulted in a CEUS LR-5 categorization.
PET/CT can rule out CAV in heart transplant patients
By Will Morton
Cardiac PET/CT scans can effectively rule out moderate to severe cardiac allograft vasculopathy (CAV) in heart transplant patients.
January 17, 2025
Ctca
Machine learning can predict immunotherapy response in NSCLC patients
By Kate Madden Yee
Machine learning can help clinicians predict immunotherapy response in patients with inoperable non-small cell lung cancer (NSCLC).
January 17, 2025
Lung Ct Images
Current topics in mammography
By Sandy Coffta
Sandy Coffta of Healthcare Administrative Partners discusses changes in reporting and reimbursement for mammography exams.
January 17, 2025
Coffta Sandy Thumbnail
Surgeon General's alcohol advisory puts patient counseling at the fore
By Amerigo Allegretto
Patient communication and education may be key for radiologists in the wake of the Surgeon General’s advisory on alcohol-related cancer risk.
January 17, 2025
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FAPI-PET shows promise for imaging gastric cancers
By Will Morton
Gallium-68 fibroblast activation protein inhibitor (FAPI) PET/CT is a promising new method for imaging gastric cancer.
January 16, 2025
Fapi Pet Gastric Cancer Thumbnail
CEM has slightly higher mean glandular dose than DBT, mammography
By Amerigo Allegretto
Contrast-enhanced mammography (CEM) has a slightly higher mean glandular dose than other breast imaging modalities.
January 16, 2025
Contrast Injector
ACS: Cancer mortality continues to drop
By Kate Madden Yee
Cancer mortality rates continue to drop -- although incidence of the disease is rising in women, according to an annual study released by the ACS.
January 16, 2025
Cancer Cell Target2
POCUS useful for diagnosis of retained conception tissue
By Amerigo Allegretto
Point-of-care ultrasound (POCUS) can be a useful tool for diagnosing the presence of retained conception tissue.
January 15, 2025
Ultrasound Portable
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