Forty-six patients with histologically proved adenocarcinoma of the prostate underwent pelvic lymphadenectomy after CAT scanning. The accuracy, specificity, and sensitivity of the CAT scan in detecting nodal metastasis were 70, 93 and 30 per cent, respectively; this compares favorably with pedal lymphangiography. Seventeen of the patients had radical prostatectomy. The accuracy, specificity, and sensitivity of the CAT scan in depicting local extent of the tumor were 47, 100, and 18 per cent, respectively; although low, no other clinical or biochemical method provides a better result.
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http://dx.doi.org/10.1016/0090-4295(81)90374-5 | DOI Listing |
JCO Clin Cancer Inform
January 2025
Department of Radiology, Dr BRAIRCH, All India Institute of Medical Sciences, New Delhi, India.
Purpose: To explore the perceived utility and effect of simplified radiology reports on oncology patients' knowledge and feasibility of large language models (LLMs) to generate such reports.
Materials And Methods: This study was approved by the Institute Ethics Committee. In phase I, five state-of-the-art LLMs (Generative Pre-Trained Transformer-4o [GPT-4o], Google Gemini, Claude Opus, Llama-3.
An Acad Bras Cienc
January 2025
Shandong University of Science and Technology, College of Earth Science and Engineering, 579, Qianwangang Road, Huangdao, Qingdao, Shandong Province, 266590, China.
A "comb-dentition", characterized by long, needle-like, and closely-spaced teeth, is found in the ctenochasmatid pterosaurs as an adaptation for filter-feeding. However, little is known about their tooth replacement pattern, hindering our understanding of the development of the filter-feeding apparatus of the clade. Here, we describe the tooth replacement of the pterosaur Forfexopterus from the Jehol Biota based on high-resolution X-ray Computed Tomography (CT) reconstruction.
View Article and Find Full Text PDFClin Oral Investig
January 2025
Stomatology Hospital, School of Stomatology, Zhejiang University School of Medicine, Clinical Research Center for Oral Diseases of Zhejiang Province, Key Laboratory of Oral Biomedical Research of Zhejiang Province, Cancer Center of Zhejiang University, Hangzhou, 310006, China.
Objectives: To evaluate recent advances in the automatic multimodal registration of cone-beam computed tomography (CBCT) and intraoral scans (IOS) and their clinical significance in dentistry.
Methods: A comprehensive literature search was conducted in October 2024 across the PubMed, Web of Science, and IEEE Xplore databases, including studies that were published in the past decade. The inclusion criteria were as follows: English-language studies, randomized and nonrandomized controlled trials, cohort studies, case-control studies, cross-sectional studies, and retrospective studies.
R I Med J (2013)
February 2025
Alpert Medical School of Brown University, Department of Medicine, Division of Cardiology, Rhode Island Hospital.
Cardiac Positron Emission Tomography (PET) is a power- ful imaging tool with diverse applications in the detection and diagnosis of various cardiac conditions, including inflammatory, infectious, and neoplastic processes. Using the radiotracer 18F-fluorodeoxyglucose (18F-FDG), cardiac PET enables the identification of cardiac involvement in diseases such as sarcoidosis and severe infections affecting the heart tissue. Additionally, 18F-FDG PET is valuable in the evaluation of cardiac masses, helping to assess their metabolic activity and potential malignancy.
View Article and Find Full Text PDFR I Med J (2013)
February 2025
Rhode Island Hospital, Warren Alpert Medical School of Brown University, Providence RI.
Coronary artery disease (CAD) remains a leading cause of morbidity and mortality worldwide, necessitating advancements in diagnostic techniques. Coronary CT angiography (CCTA) has emerged as a pivotal non-invasive tool for evaluating coronary artery anatomy and detecting atherosclerotic plaque burden with high spatial resolution. This review explores the evolution of CCTA, highlighting its technological advancements, clinical applications, and challenges.
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