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Ultrasound Portable 400
Ultrasound
POCUS improves timeliness in emergency pregnancy care
Emergency POCUS can reduce length of stay and time to diagnosis while not leading to more missed diagnoses of ectopic pregnancy.
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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.
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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.
Is nitroglycerin necessary prior to photon-counting CT?
August 27, 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.
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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.
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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 COâ‚‚e = metric tons of carbon dioxide equivalent
Sustainability efforts should look to state power grids
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Patient with abdominal pain revisited
A patient with abdominal pain out of proportion to the exam.
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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.
Molecular Imaging
Bayer's PET agent meets endpoints in phase III cardiac amyloidosis study
MRI
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CT
Is nitroglycerin necessary prior to photon-counting CT?
Molecular Imaging
PET outperforms CT in ovarian cancer
Ultrasound
Advanced ultrasound techniques improve soft tissue tumor evaluation
Artificial Intelligence Ai Global Communication Network 400
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Practice Management
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ACR Foundation receives $6M gift
The funds will support public policy research, data analysis, and regulatory policy efforts across the ACR.
Sustainability efforts should look to state power grids
Mid-size radiology practices may lose $2.6M annually to billing gaps
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Scan.com raises $220M
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The company will use the funds to invest in AI and application programming interface (API) infrastructure for patient scheduling and diagnostics.
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From left to right: Vivid Explorer, Vivid Advanced, and Vivid Focus
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Mid-size radiology practices may lose $2.6M annually to billing gaps
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CT reveals progressive growth pattern in incidental lung nodules
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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?
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The results highlight the need for disaggregated data to effectively target cancer prevention and control interventions.
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Radiology faculty most stressed, least satisfied
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Across faculty, technologists, and nurses, the most common stressors were generally system-level issues.
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Radiology Partners to acquire Everlight Radiology in $1 billion deal
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Radiology Partners said it intends to make its Mosaic Drafting AI tool available to Everlight radiologists.
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The platform combines Philips' 1.5T MRI system with Imricor's MR-compatible systems for MR-guided cardiac ablation.
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