A5063116362- Advanced MRI Techniques and Applications
- Cardiac Imaging and Diagnostics
- MRI in cancer diagnosis
- Radiomics and Machine Learning in Medical Imaging
- Lung Cancer Diagnosis and Treatment
- Medical Imaging Techniques and Applications
- Advanced X-ray and CT Imaging
- Advanced Neuroimaging Techniques and Applications
- Radiation Dose and Imaging
- Cardiovascular Function and Risk Factors
- Digital Radiography and Breast Imaging
- AI in cancer detection
- Pulmonary Hypertension Research and Treatments
- Breast Lesions and Carcinomas
- Ultrasound in Clinical Applications
- Salivary Gland Tumors Diagnosis and Treatment
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Head and Neck Cancer Studies
- Traumatic Brain Injury Research
- Sports injuries and prevention
- Congenital Heart Disease Studies
- Bone and Joint Diseases
- Lung Cancer Treatments and Mutations
- Cardiac Arrhythmias and Treatments
- Medical Imaging and Pathology Studies
Kyushu University
2016-2025
Tokai Gakuen University
2021-2023
MSD K.K. (Japan)
2021
Kyushu University Hospital
2011-2021
Institute of Clinical Research
2021
Hamanomachi Hospital
2020
Tokyo Yamate Medical Center
2015-2019
Japan Community Healthcare Organization
2015-2019
Keio University
2013-2017
Japan Electronics College
2015
Purpose: To evaluate the usefulness of apparent diffusion coefficient (ADC) for differential diagnosis breast tumors and to determine relation between ADC tumor cellularity. Materials Methods: One hundred thirty-six female patients (age range, 17-83 years; average age, 51.7 years) with 140 histologically proven underwent diffusion-weighted magnetic resonance (MR) imaging (DWI) using spin-echo echo-planar technique, ADCs were calculated 3 different b values, 0, 500, 1000 s/mm2. The diagnoses...
To determine the value of adding diffusion-weighted (DW) magnetic resonance (MR) imaging to dynamic contrast material-enhanced MR when distinguishing between benign and malignant parotid tumors.This retrospective study was approved by institutional review board, informed consent requirement waived. The authors analyzed images 50 lesions (36 benign, 14 malignant) in 47 patients. DW contrast-enhanced were performed all Time-intensity curve (TIC) patterns categorized as follows: type A, time...
To evaluate the diagnostic accuracy of a combination dynamic contrast-enhanced MR imaging (DCE-MRI) and diffusion-weighted (DWI) in characterization enhanced mass on breast to find strongest discriminators between carcinoma benignancy.We analyzed consecutive images 270 patients; however, 13 lesions 93 patients were excluded based our criteria. We tumor size, shape, margin, internal enhancement, kinetic curve pattern, apparent diffusion coefficient (ADC) values. applied univariate...
To evaluate the ability of dynamic contrast material-enhanced and diffusion-weighted (DW) magnetic resonance (MR) imaging to help detect early response chemotherapy in patients with non-small cell lung cancer (NSCLC).This study was approved by institutional review board, written informed consent obtained from all subjects. Twenty-eight stage IIIB or IV NSCLC (17 women, 11 men; mean age, 64.8 years) who underwent were enrolled. All MR before after first course chemotherapy. The time peak...
Few studies have documented catastrophic head and neck injuries in judo, but these deserve greater attention.To determine the features of judo.Descriptive epidemiological study.This study was based on accident reports submitted to All Japan Judo Federation's System for Compensation Loss or Damage. A total 72 judo (30 head, 19 neck, 23 other injuries) were reported between 2003 2010. The investigated parameters mechanism injury, age at time length experience, diagnosis, outcome.Among...
We investigated possible correlations between apparent diffusion coefficient (ADC) values and prognostic factors of breast cancer.We retrospectively evaluated 81 patients who underwent magnetic resonance (MR) imaging the were diagnosed pathologically with invasive ductal carcinoma (IDC) not otherwise specified foci one cm or larger. excluded in situ IDC smaller than because small lesions decrease reliability signal intensity diffusion-weighted (DWI). also special type cancers. used t-test to...
Background While current guidelines require lung ventilation-perfusion (V/Q) scanning as the first step to diagnose chronic pulmonary embolism in hypertension (PH), its use may be limited by low availability and/or exposure ionizing radiation. Purpose To compare performance of dynamic chest radiography (DCR) and V/Q for detection thromboembolic PH (CTEPH). Materials Methods Patients with who underwent DCR supine position from December 2019 July 2021 were retrospectively screened. The...
<h3>BACKGROUND AND PURPOSE:</h3> Few studies have investigated the relationship between ADC and clinical outcome in HNSCC. Our hypothesis has that relatively high pretreatment would correlate with local failure of HNSCC treated radiation therapy. <h3>MATERIALS METHODS:</h3> This includes prospective validation studies. Seventeen patients therapy for primary completed study. Variables considered to affect including MR imaging–related parameters such as its change ratio were compared controls,...
Abstract Objectives To develop and validate the myocardial extracellular volume (ECV) obtained from non-electrocardiography (ECG)-gated delayed CT images acquired 4 minutes post-contrast infusion (4-min-nonECG-ECV) compared with ECV ECG-gated 10 min (Conv-ECV). Methods We retrospectively analysed 29 patients (males: 21) after a comprehensive protocol of both 4-min-nonECG-ECV Conv-ECV on dual-layer scanner. The mean contrast medium administered: 90 ± 11.8 mL, average heart rate during...
The aim of this study is to assess the role traction bronchiectasis/bronchiolectasis and its progression as a predictor for early fibrosis in interstitial lung abnormalities (ILA).Three hundred twenty-seven ILA participants out 5764 Age, Gene/Environment Susceptibility (AGES)-Reykjavik Study who had undergone chest CT twice with an interval approximately five-years were enrolled study. Traction index (TBI) was classified on four-point scale: 0, without bronchiectasis/bronchiolectasis; 1,...