31 Result(s)
within
Eito Kozawa
English
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Article
Open AccessThree-dimensional convolutional neural network-based classification of chronic kidney disease severity using kidney MRI
A three-dimensional convolutional neural network model was developed to classify the severity of chronic kidney disease (CKD) using magnetic resonance imaging (MRI) Dixon-based T1-weighted in-phase (IP)/oppose...
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Open AccessThree-dimensional magnetic resonance imaging-based statistical shape analysis and machine learning-based prediction of patellofemoral instability
This study performed three-dimensional (3D) magnetic resonance imaging (MRI)-based statistical shape analysis (SSA) by comparing patellofemoral instability (PFI) and normal femur models, and developed a machin...
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Open AccessThe utility of automatic segmentation of kidney MRI in chronic kidney disease using a 3D convolutional neural network
We developed a 3D convolutional neural network (CNN)-based automatic kidney segmentation method for patients with chronic kidney disease (CKD) using MRI Dixon-based T1-weighted in-phase (IP)/opposed-phase (OP)...
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Open AccessThe utility of texture analysis of kidney MRI for evaluating renal dysfunction with multiclass classification model
We evaluated a multiclass classification model to predict estimated glomerular filtration rate (eGFR) groups in chronic kidney disease (CKD) patients using magnetic resonance imaging (MRI) texture analysis (TA...
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Open AccessDiagnostic utility of a conventional MRI-based analysis and texture analysis for discriminating between ovarian thecoma-fibroma groups and ovarian granulosa cell tumors
To evaluate the diagnostic utility of conventional magnetic resonance imaging (MRI)-based characteristics and a texture analysis (TA) for discriminating between ovarian thecoma-fibroma groups (OTFGs) and ovari...
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Open AccessUtility of magnetic resonance imaging for differentiating malignant mesenchymal tumors of the uterus from T2-weighted hyperintense leiomyomas
To generate a new discrimination method to distinguish between malignant mesenchymal tumors of the uterus and T2-weighted hyperintense leiomyoma based on magnetic resonance imaging findings and clinical features.
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Open AccessComparison of multiparametric magnetic resonance imaging sequences with laboratory parameters for prognosticating renal function in chronic kidney disease
Magnetic resonance imaging (MRI) is playing an increasingly important role in evaluating chronic kidney disease (CKD). It has the potential to be used not only for evaluation of physiological and pathological ...
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Open AccessSignal and morphological changes in the endolymph of patients with vestibular schwannoma on non-contrast 3D FLAIR at 3 Tesla
Non-contrast FLAIR revealed increased signal within the inner ear in patients with vestibular schwannoma, which is generally assumed to occur in the perilymph; however, the majority of previous studies did not...
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Open AccessTexture analysis of muscle MRI: machine learning-based classifications in idiopathic inflammatory myopathies
To develop a machine learning (ML) model that predicts disease groups or autoantibodies in patients with idiopathic inflammatory myopathies (IIMs) using muscle MRI radiomics features. Twenty-two patients with ...
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Open AccessUterine intravenous leiomyomatosis with an isolated large metastasis to the right atrium: a case report
An intravenous leiomyomatosis is a special type of uterine leiomyoma characterized by the formation of benign leiomyomatous tissue within the vascular wall. Although histologically benign, intracardiac metasta...
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Open AccessA unique uterine cervical “teratocarcinosarcoma”: a case report
Teratocarcinosarcoma (TCS) is a rare aggressive tumor of the nasal cavity and paranasal sinuses and has both epithelial and two or more mesenchymal components. In other organs, 5 cases of ovarian tumors closel...
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Open AccessTumor-to-tumor metastasis from appendiceal adenocarcinoma to an ovarian mature teratoma, mimicking malignant transformation of a teratoma: a case report
Tumor-to-tumor metastasis (TTM) is a rare but well-documented phenomenon that is defined as metastasis in a histologically distinct tumor. Ovarian mature teratomas (OMTs) can coexist with various cancers by ma...
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Open AccessCoexistence of endometrial mesonephric-like adenocarcinoma and endometrioid carcinoma suggests a Müllerian duct lineage: a case report
Endometrial mesonephric-like adenocarcinomas exhibit classical histologic features of mesonephric carcinoma; however, it remains unclear whether these tumors represent mesonephric (Wolffian) carcinoma or endom...
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Open AccessSimultaneous multi-slice MR imaging of the hip at 3 T to reduce acquisition times and maintain image quality
Newly developed simultaneous multi-slice (SMS) scans are now being introduced as a clinical application in neuroimaging. We examined the feasibility of SMS scans for joint imaging. The purpose of the present s...
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Multiple variations of the cerebral arteries associated with tetralogy of Fallot: a case report
Tetralogy of Fallot (TOF) can be associated with vascular malformations or variations, especially of the aortic arch or supracardiac major venous systems. We report its association with an extremely rare combi...
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Persistent dorsal ophthalmic artery and ophthalmic artery arising from the middle meningeal artery diagnosed by MR angiography at 3 T
A persistent dorsal ophthalmic artery (OA) is a rare variation that originates from the cavernous segment of the internal carotid artery (ICA) and enters the orbit via the superior orbital fissure (SOF). Occas...
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Benign and malignant tumor of the uterine body with broccoli sign: MR imaging features for differential diagnosis
The characteristic morphology called broccoli sign combines a stalk and prolapsed tumor and is a useful diagnostic indicator of prolapsed tumor of the uterine body. Magnetic resonance (MR) imaging findings of ...
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CT features of myocardial fat and correlation with clinical background in patients without cardiac disease
To evaluate the frequency and common locations of myocardial fat and its associated factors using coronary CT angiography (CCTA) in patients without cardiac disease.
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Variations in the origin of the vertebral artery and its level of entry into the transverse foramen diagnosed by CT angiography
The origin of the vertebral artery (VA) varies, though most VAs enter the transverse foramen (TF) of the sixth cervical vertebra. On computed tomography (CT) angiographic images, we evaluated the prevalence of...
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Variation of the origin of the left common carotid artery diagnosed by CT angiography
The left common carotid artery (LCCA) is usually a second branch of the aortic arch that arises between the brachiocephalic trunk (BCT) and left subclavian artery; relatively frequently, it also arises from or...
