Dr. Richard Black

Nuclear Medicine
Is PET an endangered species?
Just as it appeared ready to enter the clinical mainstream, PET imaging has been thrown a series of setbacks that raise questions as to whether it will ever live to up its potential. In this article, PET educator Dr. Richard Black discusses PET's spectacular rise, and also the threats that may bring it back to earth.
August 2, 2007
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CT 5-star quality rating system supports optimization
The rating framework demonstrated robust reproducibility, with three-reader concordance reaching up to 93% in highly standardized centers.
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Ultrasound
READ-DVT model performs well in finding DVT from ultrasound reports
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MRI-based models may predict atypical brain development in children
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CT 5-star quality rating system supports optimization
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The rating framework demonstrated robust reproducibility, with three-reader concordance reaching up to 93% in highly standardized centers.
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READ-DVT model performs well in finding DVT from ultrasound reports
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The AI model accurately identified the presence or absence of deep vein thrombosis on unstructured ultrasound reports.
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Bone scan testing has fallen 35% among Medicare beneficiaries
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Declines in testing were greatest among certain underserved groups.
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Dexa
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The models could provide a framework for identifying which adolescents are at higher risk of developing psychiatric conditions.
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Ultrasound MinnieCast, Episode 14: Weathering the sonographer shortage
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Avoiding the ED cuts urgent CT turnaround time by half
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Findings indicate poor performance of six VLMs for lung nodule detection on chest x-rays.
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DBT-based foundational model classifies breast density
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DBT-DINO showed strong performance in classifying breast density from DBT images.
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(A) Free-response receiver operating characteristic (FROC) curve for DBT-DINO and DINOv2 (Meta AI) on the detection task. DINOv2 achieved higher sensitivity than DBT-DINO across most false-positive thresholds. (B) Detection rates of DBT-DINO and DINOv2 for lesions that were ultimately found to be benign (n = 70) and lesions that were found to be cancerous (n = 66). Error bars represent 95% CIs estimated via patient-level bootstrapping with 1000 repetitions. Both models showed similar detection rates for cancerous lesions, whereas DINOv2 detected more benign lesions than DBT-DINO. (C) Example bounding box predictions for DBT-DINO and DINOv2 on the detection test set. Each image is a single two-dimensional section from a three-dimensional digital breast tomosynthesis volume; the first column shows a mediolateral oblique view, and the second and third columns show craniocaudal views. Both models struggled to detect very small lesions, such as the 3-mm-diameter lesion shown in the first column. FP = false positive.
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