Publications by authors named "K Yasaka"

Objectives: This study aimed to investigate the impact of changing inspiratory depth from end- to mid-inspiratory level on the iodine concentration of lung parenchyma and main pulmonary artery in dual-energy CT pulmonary angiography.

Methods: This retrospective study included patients who underwent dual-energy CT pulmonary angiography from July 2020 to June 2023. Patients were instructed to hold their breath at end- and mid-inspiratory levels before and after January 2022, respectively.

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The aim of this study is to develop a fine-tuned large language model that classifies interventional radiology reports into technique categories and to compare its performance with readers. This retrospective study included 3198 patients (1758 males and 1440 females; age, 62.8 ± 16.

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Article Synopsis
  • This study developed a large multimodality model (LMM) capable of detecting breast and esophageal cancers using chest contrast-enhanced CT scans.
  • A total of 401 patients' CT images were analyzed in training, validation, and testing phases, with the LMM trained on specific cancer-related text data to identify lesions.
  • The fine-tuned LMM demonstrated high sensitivity and diagnostic performance, achieving AUC values of 0.890 and 0.880 for breast and esophageal cancers, respectively, indicating its effectiveness in cancer imaging.
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Purpose: To investigate the effects of deep learning reconstruction on depicting arteries and providing suitable images for the evaluation of hemorrhages with abdominopelvic contrast-enhanced computed tomography (CT) compared with hybrid iterative reconstruction.

Methods: This retrospective study included 16 patients (mean age: 54.2 ± 22.

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Article Synopsis
  • Trabectedin is an antineoplastic drug primarily used for treating soft tissue sarcomas and is typically infused through a central venous port (CVP) to avoid serious complications from leakage.
  • A case was reported involving a 57-year-old man with myxoid liposarcoma who developed sterile inflammation along the catheter pathway after multiple cycles of trabectedin, showing signs like skin erythema, swelling, and induration.
  • Following the removal of the CVP due to increased injection resistance, the patient continued to experience residual induration and pigmentation for 4 months, indicating lingering effects of the inflammation.
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