Abraham Kim

CT
Radiologists distinguish COVID-19 pneumonia on CT
The novel coronavirus disease (COVID-19) is characterized by CT findings that match features of other pneumonia-causing viruses. But radiologists from the U.S. and China demonstrated that they are well-equipped to differentiate COVID-19 from these other viruses in a new study, published online March 10 in Radiology.
March 10, 2020
2020 03 11 18 48 8059 2020 03 11 Ct Coronavirus 20200311185814
CT
3 factors linked to risk of death from coronavirus
For individuals with the novel coronavirus disease, several factors were associated with an increased risk of death in a new study, published online March 9 in the Lancet journal. Careful observation and blood testing could help clinicians identify these individuals at an early stage, researchers say.
March 10, 2020
2020 02 12 18 18 3715 Virus Coronavirus2 400
CT
CT findings for coronavirus may overlap with adenovirus
Chest CT accurately detected the novel coronavirus disease (COVID-19) in the vast majority of high-risk individuals prior to confirmation by laboratory testing, though it also misidentified COVID-19 for the adenovirus in a small percentage of cases in a new study, published online March 4 in the American Journal of Roentgenology.
March 9, 2020
2020 03 09 23 31 5634 2020 03 10 Ct Adenovirus 400 20200309231011
CT
Low-dose CT produces no detectable DNA damage
The debate over the potential harms of CT radiation carries on in a new study published online March 10 in Radiology. Researchers from Japan are reporting that they found no evidence of DNA damage in individuals who underwent low-dose CT scans -- while damage was detectable from standard-dose exams.
March 9, 2020
2020 03 07 00 23 4277 2020 03 10 Dna 20200307001918
Advanced Visualization
AR equipped to 'transform' image-guided interventions
Interventional radiology is in a prime position to leverage the enhanced visualization afforded by augmented reality (AR) technology to improve image-guided procedures and achieve better outcomes, according to a recent article published online in the Journal of Vascular and Interventional Radiology.
March 8, 2020
2020 03 05 18 36 1962 2020 03 09 Ar Thumb
Advanced Visualization
AuntMinnie.com Advanced Visualization Insider
March 4, 2020
CT
3 uses for cinematic rendering of brain CTA scans
Cinematic rendering based on CT angiography (CTA) data can enhance the visualization of complex cerebrovascular anatomy and disease beyond the capabilities of traditional volume rendering, without any added costs, according to an article recently published online in the Journal of Neuroimaging.
March 4, 2020
2020 03 05 01 00 2035 2020 03 05 Cinematic Rendering Thumb
CT
CT, x-ray capture vaping lung injury in teens
What effect does vaping have on the lungs of young, healthy individuals? A study published online March 3 in Radiology details the most prevalent findings seen on the chest x-rays and CT scans of teenagers diagnosed with electronic cigarette, or vaping, product use-associated lung injury.
March 3, 2020
2020 03 02 22 56 7436 2020 03 03 Ct Evali 400
Associations
SIR issues statement on endovascular procedures for trauma
The Society of Interventional Radiology (SIR) released a position statement on the use of endovascular procedures for treating individuals with traumatic injuries in the March issue of the Journal of Vascular and Interventional Radiology.
March 2, 2020
2020 03 03 00 55 4708 Interventional Radiology Fluoroscopy 400
Advanced Visualization
3D printing improves accuracy of knee arthroplasty
A new technique that relies on 3D-printed surgical guides designed with CT data enhanced the accuracy of total knee replacement procedures and also decreased postoperative bleeding and trauma, compared with the standard technique, in a study published online on February 22 in Orthopaedic Surgery.
March 2, 2020
2020 03 02 20 42 4659 2020 03 02 3 D Printing Knee 400
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Multiple Myeloma 400
MRI
MRI-based model shows changes over time in multiple myeloma patients
Whole-body MRI could serve as a scalable biomarker for risk stratification in multiple myeloma patients.
Ultrasound Transducer3 400
Ultrasound
Thyroid nodule classification systems provide diagnostic equity
Liver
Interventional
Y-90 TARE rises to top in treatments for liver transplant patients
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Ultrasound
Ultrasound MinnieCast, Episode 16: How to create a sonography association
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eConsult systems may benefit radiology-provider communication
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PCCT on par with MRI for diagnostic breast imaging
By Amerigo Allegretto
PCCT performed similarly to MRI for characterizing breast lesions and finding additional lesions.
September 1, 2026
Detection and extent of BI-RADS suspicious calcifications (amorphous, coarse heterogeneous, fine pleomorphic, and fine linear or fine linear branching) at axial photon-counting CT (PCCT) versus full-field digital mammography (first three images, craniocaudal view; last image, mediolateral oblique view). Calcifications found on mammography showed only partial visualization at ultrahigh-resolution PCCT (0.2 mm), while amorphous calcifications could not be distinguished from image noise. Corresponding abnormal enhancement was clearly depicted on contrast-enhanced PCCT images.
Self-interpreting by ordering clinicians tied to low-value imaging
By Amerigo Allegretto
Visits involving clinicians who self-interpreted all their ordered imaging had higher odds of imaging overall.
September 1, 2026
Radiological Report 400
POCUS improves timeliness in emergency pregnancy care
By Amerigo Allegretto
Emergency POCUS can reduce length of stay and time to diagnosis while not leading to more missed diagnoses of ectopic pregnancy.
August 31, 2026
Ultrasound Portable 400
Bayer's PET agent meets endpoints in phase III cardiac amyloidosis study
By Will Morton
Overall sensitivity was 94% (95% CI, 85% to 98%) and specificity was 86% (95% CI, 77% to 92%).
August 31, 2026
This figure shows fused I-124 evuzamitide positron emission tomography (PET)/computed tomography (CT) images from patients without amyloidosis and from patients with ATTR cardiac amyloidosis, early ATTR cardiac amyloidosis, light chain cardiac amyloidosis, gelsolin-mediated amyloidosis, and systemic organ amyloid. The columns represent radiological transaxial, sagittal, and coronal views except for the last row middle and far right columns, which are coronal projections. The blue asterisks represent physiological activity (tracer activity in the stomach and esophagus). The arrowheads represent pathological uptake. Note the small amount of cardiac uptake in the basal septum and the basal lateral walls (likely early ATTR cardiac amyloidosis), splenic uptake and pleural uptake in light chain amyloidosis, and cardiac and kidney uptake in gelsolin-mediated amyloidosis. The bright yellow color represents more tracer uptake.
MRI-based biomarker tool can predict progression to dementia
By Amerigo Allegretto
The tool measures gray matter shrinkage in the brain, predicting when mild cognitive impairment progresses to dementia.
August 28, 2026
Brain 400
Is nitroglycerin necessary prior to photon-counting CT?
By Will Morton
Sublingual nitroglycerin is routinely administered before CCTA to induce coronary vasodilation.
August 27, 2026
Representative case from the non-nitroglycerin cohort. A 92-year-old man who did not receive sublingual nitroglycerin because of severe aortic stenosis. The Agatston coronary artery calcium score was 5438. (A) Curved multiplanar reformatted CCTA image reconstructed at 0.4-mm slice thickness using a Bv60 kernel and QIR strength 3 demonstrates diffuse multifocal mild luminal stenoses related to extensive calcified atherosclerotic plaque. (B) Invasive coronary angiography confirmed multifocal mild stenoses without evidence of obstructive coronary artery disease.
PET outperforms CT in ovarian cancer
By Will Morton
Peritoneal carcinomatosis in ovarian cancer is cancer that has spread from the ovaries to the peritoneum.
August 28, 2026
Comparison of contrast-enhanced CT (ceCT) and FAPI-PET in detecting peritoneal carcinomatosis in patient with advanced ovarian carcinoma. (A) ceCT shows subtle peritoneal thickening that is difficult to delineate. (B) Maximum-intensity-projection image demonstrating diffuse intense FAPI uptake corresponding to extensive peritoneal carcinomatosis. (C) FAPI-PET shows intense uptake corresponding with peritoneal carcinomatosis, with improved lesion conspicuity over ceCT.
Advanced ultrasound techniques improve soft tissue tumor evaluation
By Amerigo Allegretto
Both SWE and SMI can help distinguish benign from malignant soft tissue tumors.
August 26, 2026
Examples of ultrasound findings and techniques. (A) Images in a 39-year-old male patient with a mass in the left thigh. The mass is heterogeneous on the B-mode US image (compared with the patient in D) and showed increased microvascularity (superb microvascular imaging [SMI]) and shear-wave elastography (SWE) values. Undifferentiated pleomorphic sarcoma was diagnosed at biopsy (with pleomorphic rhabdomyosarcoma in surgical specimen). (B) Images in an 18-year-old male patient with a mass in the left leg. The mass is hypoechoic on the B-mode image, with no other findings suggestive of malignancy. The lesion is in contact with the cortex of the tibia, which is slightly irregular. CT revealed a doubtful anteromedial tibial erosion. The microvascular study demonstrated high vascularization, suggestive of malignancy. Periosteal Ewing sarcoma was diagnosed with both histologic and immunohistochemical confirmation. (C) Images in a 69-year-old female patient with a lump growing on the outside of the left leg. Multiple SWE examinations were performed (please note the high values obtained in the measurements, whereas the color map highlights the stiffness relative to adjacent tissues). SMI showed areas of increased vascularization to target for sampling. Undifferentiated spindle cell sarcoma was diagnosed at biopsy, with residual leiomyosarcoma in the surgical specimen after neoadjuvant therapy. (D) Images in a 56-year-old female patient with a mass in the right thigh. The mass is heterogeneous at both B-mode ultrasound (similar to patient A) and MRI (coronal T2-weighted spectral attenuated inversion recovery [SPAIR]; T1-weighted pre-contrast and postcontrast imaging), which even shows uptake after the administration of paramagnetic contrast material, which is traditionally suggestive of malignancy. Low values at SMI and elastography are suggestive of benignity. Spindle cell lipoma was diagnosed at biopsy, with atypical spindle cell lipomatous tumor in the surgical specimen.
Sustainability efforts should look to state power grids
By Amerigo Allegretto
Variation in grid carbon intensity by state drives per-beneficiary greenhouse gas emissions from MRI and CT use.
August 28, 2026
Choropleth map of state-level imaging-associated greenhouse gas emissions per 1,000 Medicare Part B fee-for-service beneficiaries in 2022. Darker shades indicate higher per-beneficiary greenhouse gas emissions. District of Columbia (not shown) is in 3-4 MTCO2e per 1,000 range. MT CO₂e = metric tons of carbon dioxide equivalent
Women's Imaging MinnieCast, Episode 16: Breast AI expectations versus performance
By Amerigo Allegretto
Azadeh Elmi, MD, shares results showing how breast imaging AI tools have modest clinical benefit in practice over expectations.
August 28, 2026
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CT reveals progressive growth pattern in incidental lung nodules
By Will Morton
This pattern is most associated with a family history of lung cancer.
August 25, 2026
Serial axial chest CT scans demonstrating the longitudinal evolution of small pure ground-glass nodules (pGGNs) incidentally detected during a routine wellness assessment. (A) Images in a 37-year-old woman with a family history of lung cancer show a nodule with the progressive growth pattern (box). The baseline CT scan, obtained in October 2017, demonstrates a pure ground-glass nodules in the right lower lobe. Consecutive CT scans obtained from 2017 to 2022 show the continuous enlargement of the nodule during active surveillance. The maximum diameter of the nodule increased from 5.6 mm in 2017 to 10.2 mm in 2022. (B) Images in a 45-year-old man show a nodule with the indolent growth pattern (box). The baseline CT scan, obtained in April 2018, demonstrates a pure ground-glass nodules in the left lower lobe. Consecutive CT scans obtained from 2019 to 2023 show that the nodule remained radiographically stable during CT surveillance. The maximum diameter of the nodule was 5.4 mm in 2018 and 6.1 mm at the final surveillance scan in 2023.
Should cancer data stop lumping Asian Americans, NHPI people together?
By Amerigo Allegretto
The results highlight the need for disaggregated data to effectively target cancer prevention and control interventions.
August 27, 2026
Woman Patient Asian 400
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