A5002421254- Advanced MRI Techniques and Applications
- MRI in cancer diagnosis
- Advanced Neuroimaging Techniques and Applications
- Bone Tumor Diagnosis and Treatments
- Sarcoma Diagnosis and Treatment
- Radiomics and Machine Learning in Medical Imaging
- Soft tissue tumor case studies
- Acute Ischemic Stroke Management
- Salivary Gland Tumors Diagnosis and Treatment
- Fetal and Pediatric Neurological Disorders
- Glioma Diagnosis and Treatment
- Intracranial Aneurysms: Treatment and Complications
- Intracerebral and Subarachnoid Hemorrhage Research
- Head and Neck Cancer Studies
- Neurosurgical Procedures and Complications
- Traumatic Brain Injury and Neurovascular Disturbances
- Vascular Malformations Diagnosis and Treatment
- Cerebrovascular and Carotid Artery Diseases
- Medical Imaging Techniques and Applications
- Medical Imaging and Analysis
- Oral and Maxillofacial Pathology
- Brain Tumor Detection and Classification
- Head and Neck Surgical Oncology
- Tumors and Oncological Cases
- Cerebrospinal fluid and hydrocephalus
China Medical University Hospital
2019-2025
China Medical University
2019-2025
National Tsing Hua University
2023-2024
National Defense Medical Center
2012-2023
National Taiwan University
2004-2023
Tsinghua University
2023
China Medical University
2020-2023
Capital Medical University
2020-2023
Tri-Service General Hospital
2011-2021
Weatherford College
2019-2021
Various MRI sequences have shown their potential to discriminate parotid gland tumors, including but not limited T 2 ‐weighted, postcontrast 1 and diffusion‐weighted images. In this study, we present a fully automatic system for the diagnosis of tumors by using deep learning methods trained on multimodal We used two‐dimensional convolution neural network, U‐Net, segment classify tumors. The U‐Net model was with transfer learning, specific design batch distribution optimized accuracy. also...
Purpose To investigate the performance of hematoma shape, size, Glasgow coma scale (GCS) score, and intracerebral (ICH) score in predicting 30-day mortality for ICH patients. examine influence estimation error size on prediction mortality. Materials Methods This retrospective study, approved by a local institutional review board with written informed consent waived, recruited 106 patients diagnosed as non-enhanced computed tomography study. The hemorrhagic measured computer-assisted...
Deep learning allows automatic segmentation of teeth on cone beam computed tomography (CBCT). However, the performance deep varies among different training strategies. Our aim was to propose a 3.5D U-Net improve in segmenting CBCT. This study retrospectively enrolled 24 patients who received Five U-Nets, including 2Da U-Net, 2Dc 2Ds 2.5Da 3D were trained segment teeth. Four additional 2.5Dv 3.5Dv5 3.5Dv4 and 3.5Dv3 obtained using majority voting. Mathematical morphology operations erosion...
Abstract The parasagittal dura (PSD) is a thin channel along the sagittal sinus vein at brain’s upper convexities. Previous studies have shown that cerebrospinal fluid (CSF) flows directly into PSD, with PSD dimensions and tracer clearance rates associated aging brain disorders. Since slow lymphatic drainage sensitive to water diffusion, circulation may be evaluated using diffusion-weighted imaging (DWI). However, traditional echo-planar DWI (EP-DWI) suffers from low resolution image...
To compare the image distortion and quantification variation in parotid gland apparent diffusion coefficients (ADCs) on periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) versus echo-planar diffusion-weighted (DW) magnetic resonance (MR) images to investigate relationship between ADC fat content.This prospective study was approved by a local institutional review board. Written informed consent obtained from all 33 enrolled healthy volunteers (15 men, 18...
Background: Although the ABC/2 formula has been widely used to estimate volume of intracerebral hematoma (ICH), tends overestimate volume. The volume-related imprecision not documented quantitatively. Purpose: To investigate volume-dependent overestimation by comparing it with computer-assisted volumetric analysis (CAVA). Material and Methods: Forty patients who had suffered spontaneous ICH undergone non-enhanced brain computed tomography scans were enrolled in this study. was estimated...
JOURNAL CLUB: The Warthin Tumor Score: A Simple and Reliable Method to Distinguish Tumors From Pleomorphic Adenomas CarcinomasChih-Wei Wang1,2, Yueng-Hsiang Chu3, Deng-Yiv Chiu4, Nieh Shin5, Hsian-He Hsu1,2, Jih-Chin Lee3 Chun-Jung Juan1,2Audio Available | Share Claim CREDIT
This population-based study aimed to collect, analyze, and summarize the long-term trends in medical imaging use Taiwan.A retrospective cohort of usage for individuals who received care under National Health Insurance system from 2000 2017. CT MRI utilization rates were determined overall as well across certain variables including patient age, hospital type, health characteristics, geographic area.Individuals registered our insurance have 21,766,745 scans 7,520,088 Annual growth both types...
To concurrently quantify the radiation-induced changes and temporal evolutions of parotid volume apparent diffusion coefficient (ADC) in nasopharyngeal carcinoma (NPC) patients treated by intensity-modulated radiotherapy using magnetic resonance imaging (MRI).A total 11 NPC (9 men 2 women; 48.7 ± 11.7 years, 22 glands) were enrolled. Radiation dose, sparing volume, severity xerostomia, radiation-to-MR interval (RMI) was recorded. MRI studies acquired four times, including one before three...
Background and Purpose— Brain enhancement on contrast-enhanced T1-weighted imaging (CET1-WI) after ischemic stroke is generally accepted as an indicator of the blood–brain barrier disruption. However, this phenomenon usually starts to become visible at subacute phase. The purpose study was evaluate time-course profiles K trans , cerebral blood volume ( v p ), CET1-WI with early detection changes maps their role for prediction subsequent hemorrhagic transformation in acute middle arterial...
A dual-function phantom designed to quantify the apparent diffusion coefficient (ADC) in different fat contents (FCs) and glass bead densities (GBDs) simulate human tissues has not been documented yet. We propose a FC measure ADC at FCs GBDs.
To evaluate the MR findings of ganglion cysts cruciate ligaments in correlation with clinical findings.We reviewed 12 patients obtained from a medical record 4153 consecutive referred for knee examinations. All presented chronic pain and 4 had restriction motion. The imaging were evaluated correlated manifestations.Seven found posterior 5 anterior ligaments. lobulated (n=7) or fusiform (n=5) shape, 1.8-4.5 cm size, along surface proximal distal end Ten arthroscopic resection aspiration their...
Abstract A technique integrating multishot periodically rotated overlapping parallel lines with enhanced reconstruction (PROPELLER) and imaging is presented for diffusion echo‐planar (EPI) at high spatial resolution. The method combines the advantages of to achieve accelerated sampling along phase‐encoding direction, PROPELLER acquisition further decrease echo train length (ETL) in EPI. With an eight‐element circularly symmetric RF coil, a acceleration factor 4 was applied such that, when...
Nasopharyngeal carcinoma (NPC) is a major head and neck cancer with relatively high incidence of about 5.4 per 100,000 persons in Taiwan.1 The primary treatment NPC has been external radiotherapy (RT). Now combined chemotherapy intracavity brachytherapy, more patients enjoy longer survival.2 However, radiation-induced morbidity, including xerostomia, chronic otitis media, paranasal sinusitis, temporal lobe necrosis, cranial neuropathy, carotid stenosis, palatal perforation, brainstem damage,...
The purpose of this study was to use dynamic contrast-enhanced MRI ascertain the relation between intervertebral disk degeneration and lumbar vertebral marrow blood perfusion.We recruited 25 patients (50 bodies) who underwent spine. peak signal enhancement each body calculated from time after curve fitting a pharmacokinetic model. We controlled for other variables that might have affected perfusion by assessing two bodies in patient. were divided into three groups. In group 1, one (L1 or L3)...
Background Single‐shot diffusion‐weighted imaging (ssDWI) has been shown useful for detecting active bowel inflammation in Crohn's disease (CD) without MRI contrast. However, ssDWI suffers from geometric distortion and low spatial resolution. Purpose To compare conventional with higher‐resolution (HR‐ssDWI) multi‐shot DWI based on multiplexed sensitivity encoding (MUSE‐DWI) evaluating CD, using contrast‐enhanced MR (CE‐MRI) as the reference standard. Study Type Prospective. Subjects Eighty...