RSNA 2009

Nov 29, 2009

Crowds in McCormick Place on the first day of RSNA 2009.

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Response Evaluation Criteria in Bone Metastases (RECIBM) and metabolic criteria were used to detect a complete response missed at anatomic assessment. A 76-year-old male patient presented with 1 month of hemoptysis and was diagnosed with small cell lung cancer and bone metastases. Baseline (July 2022) F-18 FDG-PET/CT images (A, maximum intensity projection image; B–E, axial images) demonstrate FDG-avid lesions in the left lamina of the first lumbar vertebra (L1) (straight yellow arrows; maximum standardized uptake value, 2.74; peak standardized uptake value normalized to lean body mass, 1.59) and left ilium (curved yellow arrows; maximum standardized uptake value, 3.68; peak standardized uptake value normalized to lean body mass, 2.28). After seven chemotherapy cycles (December 2022), follow-up PET/CT images (F, maximum intensity projection image; G–J, axial images) show complete metabolic resolution of bony lesions (L1: maximum standardized uptake value, 1.32, and peak standardized uptake value normalized to lean body mass, 0.85; left ilium: maximum standardized uptake value, 1.48, and peak standardized uptake value normalized to lean body mass, 0.82), without apparent osteolytic or osteoblastic changes at CT. Assessment was stable disease (SD) according to the University of Texas MD Anderson Cancer Center (MDA) criteria but complete response (CR) or complete metabolic response (CMR) according to RECIBM, PET Response Criteria in Solid Tumors (PERCIST), and European Organization for Research and Treatment of Cancer (EORTC) criteria. The patient was alive as of September 30, 2025.
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AI ultrasound model accurately estimates gestational age
By Amerigo Allegretto
The model achieved noninferiority compared to standard clinical assessments in healthcare settings based in the U.S. and Africa.
July 9, 2026
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AR-guided localization may sub for CT for early-stage lung cancer
By Amerigo Allegretto
AR-guided localization was noninferior to conventional CT guidance and led to better patient experiences.
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Study backs LDCT lung cancer screening in Singapore
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Lung cancer is the leading cause of cancer death in Singapore, with approximately 48% of cases occurring in individuals who have never smoked.
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New criteria evaluates treatment response in bone metastases
By Will Morton
RECIBM-defined response classifications showed high agreement with established criteria and reclassified 19% of patients.
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Response Evaluation Criteria in Bone Metastases (RECIBM) and metabolic criteria were used to detect a complete response missed at anatomic assessment. A 76-year-old male patient presented with 1 month of hemoptysis and was diagnosed with small cell lung cancer and bone metastases. Baseline (July 2022) F-18 FDG-PET/CT images (A, maximum intensity projection image; B–E, axial images) demonstrate FDG-avid lesions in the left lamina of the first lumbar vertebra (L1) (straight yellow arrows; maximum standardized uptake value, 2.74; peak standardized uptake value normalized to lean body mass, 1.59) and left ilium (curved yellow arrows; maximum standardized uptake value, 3.68; peak standardized uptake value normalized to lean body mass, 2.28). After seven chemotherapy cycles (December 2022), follow-up PET/CT images (F, maximum intensity projection image; G–J, axial images) show complete metabolic resolution of bony lesions (L1: maximum standardized uptake value, 1.32, and peak standardized uptake value normalized to lean body mass, 0.85; left ilium: maximum standardized uptake value, 1.48, and peak standardized uptake value normalized to lean body mass, 0.82), without apparent osteolytic or osteoblastic changes at CT. Assessment was stable disease (SD) according to the University of Texas MD Anderson Cancer Center (MDA) criteria but complete response (CR) or complete metabolic response (CMR) according to RECIBM, PET Response Criteria in Solid Tumors (PERCIST), and European Organization for Research and Treatment of Cancer (EORTC) criteria. The patient was alive as of September 30, 2025.
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Among participants with the “the hyperdense capsule sign,” middle meningeal artery embolization resulted in significant benefits over usual care.
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Representative axial noncontrast CT images with and without the hyperdense capsule sign (HDCS). The HDCS is defined as a hyperdense capsule layer of linear shape surrounding a subdural hematoma (SDH). (A–D) Images of SDH with the HDCS (arrowheads). (E–H) Images of SDH without the HDCS.
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Released by the Centers for Medicare and Medicaid Services (CMS) on July 2, the proposed rule has a 60-day comment period.
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Prostate biopsies are associated with considerable morbidity, including pain, rectal bleeding, prostatitis, and urinary tract infections.
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A visual abstract of the study.
Socioeconomic conditions amplify pollution-related bone loss
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The findings underscore how environmental and social conditions work together to influence long-term bone health.
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Medicare Advantage cost-sharing varies for advanced imaging services
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More plans require cost-sharing for advanced imaging, with a growing share of plans requiring both coinsurance and a copayment.
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