39 Result(s)
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Article
Hiroshi Yoshioka
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Article
Open AccessHigh contrast cartilaginous endplate imaging in spine using three dimensional dual-inversion recovery prepared ultrashort echo time (3D DIR-UTE) sequence
To investigate the feasibility and application of a novel imaging technique, a three-dimensional dual adiabatic inversion recovery prepared ultrashort echo time (3D DIR-UTE) sequence, for high contrast assessm...
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Open AccessReversal of senescence-associated beta-galactosidase expression during in vitro three-dimensional tissue-engineering of human chondrocytes in a polymer scaffold
Regenerative medicine applications require cells that are not inflicted with senescence after in vitro culture for an optimal in vivo outcome. Methods to overcome replicative senescence include genomic modific...
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Open AccessA novel human donor cornea preservation cocktail incorporating a thermo-reversible gelation polymer (TGP), enhancing the corneal endothelial cell density maintenance and explant culture of corneal limbal cells
McCarey-Kaufman’s (MK) medium and Optisol-GS medium are the most commonly employed media for human donor corneal preservation. In this study, we evaluated the preservation efficacy of discarded human donor cor...
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Open AccessT1rho and T2 relaxation times of the normal adult knee meniscus at 3T: analysis of zonal differences
Prior studies describe histological and immunohistochemical differences in collagen and proteoglycan content in different meniscal zones. The aim of this study is to evaluate horizontal and vertical zonal diff...
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Open AccessT1rho map** of entire femoral cartilage using depth- and angle-dependent analysis
To create and evaluate normalized T1rho profiles of the entire femoral cartilage in healthy subjects with three-dimensional (3D) angle- and depth-dependent analysis.
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Open AccessInitial experience with 3D isotropic high-resolution 3 T MR arthrography of the wrist
Our study was performed to evaluate the image quality of 3 T MR wrist arthrograms with attention to ulnar wrist structures, comparing image quality of isotropic 3D proton density fat suppressed turbo spin echo...
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Patient-specific implants for lateral unicompartmental knee arthroplasty
The lateral compartment of the knee is biomechanically and anatomically different from the medial compartment. Most commercially available unicompartmental implants are not designed specifically for the latera...
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Open AccessConsecutive assessment of FA and ADC values of normal lumbar nerve roots from the junction of the dura mater
Diffusion weighted imaging (DWI) and diffusion tensor imaging (DTI) are widely used in the evaluation of the central nervous system and recently have been reported as a potential tool for diagnosis of the peri...
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Open AccessStudy of surgical indication for knee arthroplasty by cartilage analysis in three compartments using data from Osteoarthritis Initiative (OAI)
Bicompartmental or unicompartmental knee arthroplasty (BKA, UKA) is currently advocated as an alternative solution to conventional total knee arthroplasty (TKA) in order to preserve bone stock and ligaments fo...
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Article
Open AccessTwo types of laminolysis in adolescent athletes
Bony defects in the spine are divided into three main types: spondylolysis, pediculolysis, and laminolysis. Lumbar spondylolysis is a well-known stress fracture that occurs frequently in adolescent athletes. P...
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Open AccessUlnar-sided wrist pain. II. Clinical imaging and treatment
Pain at the ulnar aspect of the wrist is a diagnostic challenge for hand surgeons and radiologists due to the small and complex anatomical structures involved. In this article, imaging modalities including rad...
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Open AccessUlnar-sided wrist pain. Part I: anatomy and physical examination
Ulnar-sided wrist pain is a common complaint, and it presents a diagnostic challenge for hand surgeons and radiologists. The complex anatomy of this region, combined with the small size of structures and subtl...
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Computed tomography findings of spontaneous perforation of pyometra
We report herein a case of spontaneous perforation of pyometra leading to diffuse peritonitis. This pathological condition is rare, and preoperative diagnosis is difficult. We were able to make the correct dia...
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Article
Gallbladder hernia into the foramen of Winslow: CT findings
We present a case of gallbladder hernia into the foramen of Winslow. During the diagnosis of hernia, ultrasonography, computed tomography and intravenous computed tomography, cholangiography of the abdomen wer...
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Open AccessEmpirical evaluation of the inter-relationship of articular elements involved in the pathoanatomy of knee osteoarthritis using Magnetic Resonance Imaging
In this cross-sectional study, we conducted a comprehensive assessment of all articular elements that could be measured using knee MRI. We assessed the association of pathological change in multiple articular ...
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New thermoreversible liquid embolic agent for embolotherapy: technical report
To evaluate potential feasibility of new liquid embolic agent, thermoreversible gelation polymer (TGP), for embolotherapy.
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Prone positioning improves distribution of pulmonary perfusion: noninvasive magnetic resonance imaging study in healthy humans
The purpose of this study was to evaluate the effects of prone positioning on pulmonary perfusion using flow-sensitive alternating inversion recovery (FAIR), a noninvasive magnetic resonance imaging technique ...
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Skeletal recurrences and metastases of extraskeletal myxoid chondrosarcoma
The objective was to elucidate clinical and imaging features of skeletal involvement, recurrences, and metastases of extraskeletal myxoid chondrosarcoma.
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Malignant triton tumor in a patient with neurofibromatosis type 1
We report a case of neurofibromatosis type 1 (NF1) complicated by a malignant triton tumor (MTT), with an emphasis on B-mode sonographic (US) and contrast-enhanced US (CEUS) findings. To the best of our knowle...
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High-resolution MR imaging of the proximal zone of the lunotriquetral ligament with a microscopy coil
To evaluate high-resolution MRI of the proximal zone of the lunotriquetral ligament (LTL) using a microscopy surface coil with a 1.5 T scanner.
