Publications by authors named "Arisa Ohara"
Article Synopsis
- The study aimed to compare the ability of deep learning algorithms and experienced physicians to diagnose gangrenous cholecystitis from CT images, assessing the potential for diagnostic aid in urgent cases.
- It analyzed data from 154 patients, training a convolutional neural network (CNN) with a significant number of images and testing its performance against three blinded physicians.
- Results showed that the CNN outperformed the physicians in key metrics like sensitivity and accuracy, suggesting that deep learning models could be effective tools in clinical decision-making for acute cholecystitis.
Primary solitary sphenoid sinus mucocele is rare, generally presenting with headaches or eye symptoms at the anatomical site. We report the case of a 39-year-old woman incidentally diagnosed with sphenoid sinus mucocele during a complete medical checkup. Imaging revealed that the cystic wall had developed from the rear sphenoid sinus and had spread expansively to diminish the clivus; however, no symptoms were reported, and the patient was managed with close observation.
View Article and Find Full Text PDFPurpose: Ultrahigh-resolution CT (UHRCT) with slice collimation of 0.25 mm × 160 and matrix size of 1024 × 1024 has become clinically available. We compared the image quality of temporal bone CT (TBCT) between UHRCT and conventional multidetector CT (MDCT).
View Article and Find Full Text PDFArticle Synopsis
- - A 64-year-old man with a history of trauma and previous sinus surgery experienced recurrent orbitofrontal cholesterol granuloma, presenting symptoms like nasal congestion, loss of smell, and double vision.
- - Initial CT scans indicated a mass linked to chronic sinusitis, leading to the diagnosis of cholesterol granuloma after endoscopic surgery removed the cyst.
- - The lesion recurred after two months, requiring a Modified Lothrop (Draf III) procedure, which successfully prevented relapse over a five-year period, highlighting its effectiveness as a treatment option.
Three-dimensional imaging of vocalizing larynx by ultra-high-resolution computed tomography.
Eur Arch Otorhinolaryngol
November 2019
Purpose: Ultra-high-resolution computed tomography (UHRCT) is an emerging imaging technology that is able to achieve simultaneous 160 slices with super-thin 0.25 mm thickness. The purpose of this study was to assess the feasibility of UHRCT to visualize laryngeal structure and kinetics.
View Article and Find Full Text PDFDiffuse large B-cell lymphoma arising as a primary tumor in the frontal sinus is very rare. Moreover, it is often difficult to diagnose frontal sinus lesions. A 67-year-old Japanese man initially presented with diplopia and a swollen left upper eyelid.
View Article and Find Full Text PDFVitrectomy and scleral imbrication in patients with myopic traction maculopathy and macular hole retinal detachment.
Graefes Arch Clin Exp Ophthalmol
April 2017
Purpose: To determine the outcomes of vitrectomy with scleral imbrication in highly myopic eyes with either myopic traction maculopathy (MTM) or macular hole retinal detachment (MHRD).
Methods: The medical records of 17 patients who had undergone vitrectomy with internal limiting membrane (ILM) peeling and scleral imbrication for MTM or MHRD were reviewed. The best-corrected visual acuities (BCVAs), the axial length, the macular hole (MH) closure rate, and the shape of the posterior segment determined by optical coherence tomography were evaluated.