Results 41 to 50 of about 246,347 (248)

Endoscopic enucleation and clinicopathologic correlation of a small choroidal melanoma hiding massive extrascleral extension

American Journal of Ophthalmology Case Reports, 2023
Purpose: To report the unusual case of a previously stable choroidal nevus, closely followed for over 15 years, which underwent malignant transformation into small choroidal melanoma with massive extrascleral extension.
Michael D. Yu, Bryce Chiang, Malini Veerappan Pasricha, Benjamin P. Erickson, Prithvi Mruthyunjaya   +4 more
doaj   +1 more source

Miniaturized Magnetic Tip Design for Endoluminal Vine Robot Navigation

Advanced Robotics Research, EarlyView.
A magnetic tip mount is designed for a miniaturized 7 mm soft‐growing vine robot to enable wireless magnetic steering and onboard imaging, while preserving a 3 mm working channel. The internal–external ring magnets design balances magnetic attachment with low eversion pressure. Experiments demonstrate ±90° steering, 34 mm bending radius, and successful
Andrea Yanez Trujillo, Joshua Davy, James H. Chandler, James Avery, Pietro Valdastri   +4 more
wiley   +1 more source

Strategic Design of Soft Actuators in Translational Medical Robotics for Human‐Centered Healthcare

Advanced Robotics Research, EarlyView.
Soft robotics enables biocompatible, compliant medical devices, but clinical translation requires design‐driven engineering beyond materials. This perspective reviews implantable, surgical, and wearable systems by actuation mechanism, highlighting how optimized architectures and integration improve mechanical interfacing, adaptability, and durability ...
Ho Jun Jin, Jimin Kim, Inho Kim, Bong Hoon Kim   +3 more
wiley   +1 more source

COMPARATIVE EFFICACY OF ULTRASONOGRAPHY (USG) VERSUS MAGNETIC RESONANCE CHOLANGIOPANCREATOGRAPHY (MRCP) FOR THE DIAGNOSIS OF CHOLEDOCHOLITHIASIS

Pakistan Armed Forces Medical Journal, 2020
Objective: To determine the relative diagnostic efficacy of ultrasonography versus Magnetic Resonance Cholan-giopancreatography for the diagnosis of common duct stones. Study Design: Prospective observational study.
Javed Anwar, Sidra Waheed, Waseem Raja
doaj   +4 more sources

The dual role of endoscopic ultrasonography in the diagnosis and treatment of autoimmune pancreatitis with gastric variceal bleeding: A case report and literature review

Journal of International Medical Research
Autoimmune pancreatitis is a rare type of chronic pancreatitis associated with immune disorders. Co-occurrence of regional portal hypertension and gastric variceal bleeding associated with autoimmune pancreatitis is exceedingly rare.
Wenfeng Xi, Wen Shi, Yunlu Feng, Xinyuan Cao, Xiaoyan Chang, Aiming Yang   +5 more
doaj   +1 more source

Application of Computer-Assisted Endoscopic Ultrasonography Based on Texture Features in Differentiating Gastrointestinal Stromal Tumors from Benign Gastric Mesenchymal Tumors

The Turkish Journal of Gastroenterology
Background/Aims: Gastrointestinal stromal tumors are common gastric mesenchymal tumors that are potentially malignant. However, endoscopic ultrasonography is poor in diagnosing gastrointestinal stromal tumors.
Chengqian Lv, Hongliang Chen, Ping Huang, Yongfang Chen, Bingrong Liu   +4 more
doaj   +1 more source

Diagnosis and Treatment of Esophageal Granular Cell Tumor: A Case Report and Review of the Literature

Case Reports in Gastrointestinal Medicine, 2017
Gastrointestinal granular cell tumors are uncommon. The most common site of gastrointestinal granular cell tumor (GCT) is esophagus. We report a case of esophageal GCT incidentally diagnosed by endoscopy.
Ramin Niknam, Kamran Bagheri Lankarani, Bita Geramizadeh   +2 more
doaj   +1 more source

Unsolved problems in endoscopic papillectomy

International Journal of Gastrointestinal Intervention, 2020
This article highlights some of the unanswered challenges in performing safe and effective endoscopic papillectomy (EP) as well as offering strategies to deal with these challenges.
Nam Hee Kim, Hong Joo Kim
doaj   +1 more source

Intelligent Micro/Nanorobots for Targeted Interventional Therapy: From Bench to Clinic

Advanced Robotics Research, EarlyView.
Zirui Zhang et al. reviewed the application and challenges of mobile nanomachines in interventional therapy. By converting exogenous energy, including chemical, magnetic, optical, and ultrasonic sources, into mechanical forces, micro/nanorobots (MNRs) enable precise actuation at unprecedented scales. Evolving far beyond traditional drug delivery, these
Zirui Zhang, Yu Dong, Yongsheng Du, Rui Gao, Lin Zhang, Fei Tong   +5 more
wiley   +1 more source

Flexible Sensors for Robotics Tactile Perception: A Review

Advanced Robotics Research, EarlyView.
Flexible tactile sensing for robotics is reviewed through four interconnected dimensions. Physical mechanisms include piezoresistive, capacitive, piezoelectric, triboelectric, iontronic, and optical sensing. Structural design includes bioinspired, defect‐based, and MEMS‐based tactile systems.
Yu Song, Ying Chen, Yihao Chen, Xue Feng
wiley   +1 more source