Abraham Kim

[email protected]

Is it time to individualize CT lung screening intervals?

Wednesday, December 4 | 10:50 a.m.-11:00 a.m. | SSK05-03 | Room N229Tailoring the interval between baseline and follow-up CT lung screening exams based on an individual's risk of lung cancer could safely reduce the rate of unnecessary screening exams, say researchers from Italy.

November 6, 2019

New method bolsters analysis of repeat CT exams

Wednesday, December 4 | 10:40 a.m.-10:50 a.m. | SSK18-02 | Room E353CA team of investigators from Wisconsin has developed an automated informatics-based method for identifying repeat CT exams that may help refine CT protocols and reduce the rate of unnecessary scans.

November 6, 2019

Math model optimizes CT radiation for liver cancer

Wednesday, December 4 | 10:30 a.m.-10:40 a.m. | SSK18-01 | Room E353CResearchers from Duke University have developed a mathematical model that can calculate the ideal CT radiation dose for liver cancer detection by weighing the potential harms of CT radiation against the risk of an incorrect diagnosis.

November 6, 2019

How effective is Lung-RADS for subsolid lung nodules?

Wednesday, December 4 | 10:30 a.m.-10:40 a.m. | SSK05-01 | Room N229Current management guidelines from the Lung Imaging Reporting and Data System (Lung-RADS) slightly underestimate the malignancy of subsolid nodules found on CT lung cancer screening exams and may need to be revised, according to this study to be presented on Wednesday.

November 6, 2019

AI algorithm makes CAC viable on ultralow-dose CT

Wednesday, December 4 | 10:30 a.m.-10:40 a.m. | SSK03-01 | Room E351Researchers from Israel have developed a denoising artificial intelligence (AI) algorithm that can make coronary artery calcium (CAC) scoring viable on ultralow-dose CT scans.

November 6, 2019

Photon-counting CT cuts radiation dose by roughly 80%

Tuesday, December 3 | 3:00 p.m.-3:10 p.m. | SSJ22-01 | Room N226Photon-counting CT can match the image quality of conventional sinus and temporal bone CT at approximately one-sixth the radiation dose, according to researchers from the Mayo Clinic in Rochester, MN.

November 6, 2019

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CCTA adds value to ischemic stroke evaluation

Monday, December 2 | 3:40 p.m.-3:50 p.m. | SSE06-05 | Room E353AAcquiring coronary CT angiography (CCTA) in addition to head CT for patients suspected of having an acute ischemic stroke can help identify potential sources of cardioembolic stroke while also providing insight into the patients' risk of coronary artery disease, according to this study to be presented on Monday.

November 6, 2019

FFR-CT values vary by coronary artery segment measured

Monday, December 2 | 11:40 a.m.-11:50 a.m. | SSC01-08 | Room S402ABFractional flow reserve CT (FFR-CT) values measured in the distal segment of the coronary arteries were markedly lower than those measured in the proximal and mid segments of the same arteries in a study by researchers from South Carolina.

November 6, 2019

FFR-CT, CCTA bolster emergency chest pain evaluation

Monday, December 2 | 11:20 a.m.-11:30 a.m. | SSC04-06 | Room S102CDThe combination of fractional flow reserve CT (FFR-CT) and conventional coronary CT angiography (CCTA) proved to be effective at ruling out major adverse cardiac events for emergency patients with acute chest pain in this study to be discussed on Monday.

November 6, 2019

FFR-CT may reduce downstream testing for chest pain

Monday, December 2 | 10:30 a.m.-10:40 a.m. | SSC01-01 | Room S402ABAccounting for fractional flow reserve CT (FFR-CT) when evaluating the coronary CT angiography scans of patients with chest pain could improve patient classification and lower the rate of follow-up examinations, according to this Monday presentation.

November 6, 2019

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

Vilert Loving, MD, from Ochsner Health and the SBI discusses breast cancer screening based on annual mammography versus risk.

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Chest x-rays reveal atherosclerosis in patients undergoing amputations

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

Phase I trial reveals the potential of a new PSMA-PET tracer

The radiotracer detected more lesions in men with metastatic disease than F-18 piflufolastat.

December 9, 2025

Scans in a 73-year-old man with biochemically recurrent prostate cancer (prostate-specific antigen level of 0.5 ng/mL) who underwent PET/CT with 9.4 mCi of F-18 piflufolastat and a second PET/CT examination with 8.1 mCi of copper 61-NODAGA (1,4,7-triazacyclononane,1-glutaric acid-4,7-acetic acid)–prostate-specific membrane antigen for imaging and therapy (Cu-61 PSMA I&T) 24 days apart, with no intervening therapy. Maximum intensity projection (MIP) images obtained (A) 1 hour after F-18 piflufolastat administration and (B) 1, (C) 2, and (D) 4 hours after Cu-61 PSMA I&T administration are shown. Physiologic uptake is seen in the lacrimal glands, salivary glands, liver, spleen, kidneys, ureters, and bladder. Pathologic uptake in pelvic nodal metastases is labeled with arrows. The F-18 piflufolastat PET/CT MIP image reveals two avid pelvic nodal metastases (arrows). Cu-61 PSMA I&T PET/CT scans demonstrate three avid pelvic nodal metastases on 1-hour and 2-hour images (arrows); five avid pelvic nodal metastases were suspected on the 4-hour image (arrows).

Radiologists can designate nonmass lesions on breast ultrasound

By Amerigo Allegretto

Breast radiologists achieved moderate to substantial interreader agreement for classifying nonmass lesions on ultrasound.

December 9, 2025

Images depict a 50-year-old woman with a lesion detected during screening ultrasound. (A) Transverse and (B) longitudinal images reveal a 0.5-cm hypoechoic lesion (arrow) in the left breast. (C) Transverse color Doppler ultrasound image does not show an increase in vascularity. Two readers classified the lesion as a mass, whereas two others categorized it as a nonmass lesion, leading to its designation as a controversial nonmass lesion. Ultrasound-guided core needle biopsy and subsequent pathologic examination confirmed a nonproliferative breast change.

Long COVID's neurological effects persist

By Kate Madden Yee

Long COVID is typically defined as persistent symptoms beyond four weeks from onset of the illness.

December 9, 2025

MRI proves effective for tracking results of obesity interventions

By Kate Madden Yee

MRI is a powerful tool to monitor skeletal muscle adaptations during lifestyle interventions for obesity, researchers noted.

December 8, 2025

TVR-PET/CT shows promise in primary hyperparathyroidism

Gallium-68 trivehexin PET/CT was superior for identifying lesions over technetium-99m sestamibi SPECT.

December 8, 2025

ACR talks BI-RADS version 2025 with AuntMinnie

By Amerigo Allegretto

ACR members discussed the need to release the latest version of BI-RADS and what changes breast radiologists can expect.

December 8, 2025

ACR's Ted Burnes talks advocacy in radiology with AuntMinnie

By Amerigo Allegretto

Ted Burnes from the American College of Radiology spoke with AuntMinnie on achievements in advocacy and what 2026 may bring.

December 8, 2025

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PiB-PET/CT detects subtypes in cardiac amyloidosis

PiB-PET/CT shows strong promise as a next-generation diagnostic tool for cardiac amyloidosis.

December 5, 2025

HPI: 13.5B mL of contrast media administered from 2011 to 2024

By Kate Madden Yee

The findings are sobering, as contrast use contributes to environmental pollution.

December 5, 2025

Contrast Injector

AI ultrasound tool could reduce unnecessary biopsies by 60%

By Amerigo Allegretto

An AI tool could help reduce unnecessary breast biopsies, but should be used in conjunction with radiologist decision-making.

December 5, 2025

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3D CNN model estimates MACE risk from chest CT

By Kate Madden Yee

The algorithm appears effective at predicting major adverse cardiovascular events (MACE) even when applied to diverse patient groups.

December 5, 2025

What is the role of AI quantitation of coronary plaque?

Tracking coronary artery calcium score alone is not enough, according to an RSNA presentation.

December 4, 2025

Rsna 2025 Welcome

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