Dr. Darrell Kirch

Nov 29, 2015
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Training program leads to lung ultrasound success for paramedics
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CT shows that cystic lung lesions on LCS boost malignancy risk
May 20, 2025
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Abbreviated axial MRI images show a 7-mm irregular mass with irregular margin (arrows) in the right upper inner quadrant with early rapid enhancement (BIRADS 4). The participant was recalled and underwent an MRI-guided vacuum-assisted biopsy that showed sclerosing adenosis with microcalcifications and usual ductal hyperplasia and focal apocrine metaplasia. On the full-protocol images (not shown), the lesion was T2-weighted hypointense and showed diffusion restriction and washout kinetics in the delayed phase, characteristics that would not have reversed the decision to recall the participant.
Abbreviated MRI suffices in imaging dense breasts
May 20, 2025
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Training program leads to lung ultrasound success for paramedics
By Amerigo Allegretto
Paramedics who underwent a short training program saw their lung ultrasound skills improve.
May 20, 2025
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CT shows that cystic lung lesions on LCS boost malignancy risk
By Kate Madden Yee
Cystic lung lesions with nodular wall thickening are associated with increased risk of malignancy.
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LLMs may boost error detection in x-ray reports
By Will Morton
Fine-tuned large language models (LLMs) may enhance error detection in radiology reports, a study suggests.
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Abbreviated MRI suffices in imaging dense breasts
By Amerigo Allegretto
Abbreviated MRI produces images at a comparable quality to that of multiparametric MRI in imaging dense breasts.
May 20, 2025
Abbreviated axial MRI images show a 7-mm irregular mass with irregular margin (arrows) in the right upper inner quadrant with early rapid enhancement (BIRADS 4). The participant was recalled and underwent an MRI-guided vacuum-assisted biopsy that showed sclerosing adenosis with microcalcifications and usual ductal hyperplasia and focal apocrine metaplasia. On the full-protocol images (not shown), the lesion was T2-weighted hypointense and showed diffusion restriction and washout kinetics in the delayed phase, characteristics that would not have reversed the decision to recall the participant.
How accurate is the 'Final Destination Bloodlines' MRI scene?
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How accurate is the 'Final Destination Bloodlines' MRI scene? A story published May 17 on Today.com explores the question.
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FAPI-SPECT/CT shows promise diagnosing gastrointestinal cancer
By Will Morton
FAPI-SPECT/CT is comparable to FDG-PET/CT for detecting lesions in patients with gastrointestinal cancer, a study shows.
May 19, 2025
Representative F-18 FDG-PET/CT and Tc-99m FAPI-SPECT/CT scans for five study patients with gastrointestinal cancer. FDG-PET/CT and FAPI-SPECT/CT images show that uptake occurred in metastatic lymph nodes (LNs) (patient number 50, D) and bone metastases (patient number 33, C). FAPI-SPECT/CT outperformed FDG-PET/CT in detecting liver metastases (patient number 3, A; and 15,B) and peritoneal spread metastases (patient number 27, E). Red arrows indicate foci additionally found by FAPI-SPECT/CT.
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What is the role of radiologists going forward?
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Is more reliance on advanced imaging leading to higher workloads?
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The increased use of advanced imaging exams may be tied to increased radiology workloads, and the COVID-19 pandemic may have played a part.
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National coverage begins for CT colonography
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In a new column, Sandy Coffta of Healthcare Administrative Partners shares how to get Medicare reimbursement for CT colonography.
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Diversity in interventional radiology residency programs lacking
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Interventional radiology is one of the least diverse medical specialties among residents, a new analysis found.
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ISMRM: 4D flow MRI shows promise in chronic liver disease
By Will Morton
4D flow MRI could help identify fibrosis in patients with chronic liver disease, a study suggests.
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Velocity streamlines of the portal vein measured using 4D flow MRI in a cirrhosis patient (a 62-year-old male), shown at the cardiac cycle time t = 84 ms. A cut-plane (white marker) matching the 2D flow image plane was used to quantify the 4D flow parameters in the main portal vein.
ISMRM: Low-field MR elastography feasible in liver imaging
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Low-field MR elastography at 0.55T produces high-quality liver images, a study presented at ISMRM 2025 found.
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