Miniaturization of the sonographic transducer is clinically valuable for the diagnosis and treatment in obstetrics and gynecology, and transvaginal ultrasound has been widely used in gynecological examination. The application of laparoscopic and surgical ultrasound detectors can reduce complications or injuries. The application of three-dimensional ultrasound can clearly show fetal anatomic structures, providing a new way for prenatal diagnosis.
Gynecology ; methods ; Humans ; Laparoscopy ; methods ; Obstetrics ; methods ; Ultrasonography ; methods ; Ultrasonography, Interventional ; Ultrasonography, Prenatal

With the continuous advances in modern medical technology and equipment,minimally invasive surgery (MIS) is widely applied in clinical practice.Ultrasound (US) as a real-time,portable,and radiation-free medical imaging method can be used for the intraoperative guidance in MIS to ensure safe and effective surgery.However,the physical characteristics of conventional US fail to display some tissue structures of the human body due to the existence of gas and bone.US-based navigation can make up for the deficiencies by advanced imaging technologies including spatial orientation,image reconstruction,and multi-modality image fusion,being real-time,accurate,and radiation-free.Therefore,US-guided robots can achieve safe,effective,and minimally invasive operation in MIS.This paper reviews the studies of US-guided robots in MIS and prospects the development of this field.
Humans ; Robotics/methods* ; Minimally Invasive Surgical Procedures/methods* ; Ultrasonography ; Spinal Fusion/methods* ; Ultrasonography, Interventional/methods*

Coronary Stenosis ; diagnostic imaging ; Humans ; Ultrasonography, Interventional ; methods

Acute Coronary Syndrome ; diagnosis ; Diagnostic Imaging ; methods ; Humans ; Ultrasonography, Interventional

Deep venipuncture catheterization is a routine and basic operation in the treatment of critically ill patients, and it is the most effective way to quickly correct the shock. Clinical B-ultrasound guided deep vein catheters can improve the success rate of puncture, but in the process of operation, the short axis needs to be replaced by the long axis. In the replacement process, the stability of the novice is insufficient, the positioning is difficult, and the operation time is too long. If only short axis puncture is used, it is impossible to know whether the current position of the puncture needle, and the puncture may be too deep and stray into the artery. The accuracy of the 45 degree angle of the injection point requires a very experienced operator. In view of the above shortcomings, doctors in the department of critical care medicine of Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine designed a B-ultrasound puncture equipment, which has obtained the National Invention Patent of China (ZL 2016 1 0571557.X). The device is composed of B-ultrasound probe fixing frame, sliding scale plate, simulation slide rule, puncture needle, sliding device. By sliding device the angle of the pinhole channel, it is conducive to the accurate positioning of the puncture target, optimizing the operation procedure, improving the puncture speed and accuracy, effectively reducing the occurrence of puncture complications, ensuring patient safety, reducing unnecessary waste of human and material resources. It can reduce the workload of medical staff and is worthy of clinical practice.
Humans ; Catheterization, Central Venous/methods* ; Ultrasonography, Interventional/methods* ; Ultrasonography ; Punctures/methods* ; Needles

Arterial cannulation can be used to monitor blood pressure in real time and facilitate frequent arterial blood gas analysis.It is one of the commonly used clinical techniques in anesthesia,emergency,and intensive care units.Studies have demonstrated that ultrasound guidance can increase the success rate of arterial cannulation and reduce the incidence of related complications.In recent years,ultrasound guidance technology has developed rapidly and is increasingly used in clinical practice.This article reviews the latest advances in the application of ultrasound guidance in radial artery cannulation.
Blood Pressure ; Catheterization, Peripheral/methods* ; Radial Artery/diagnostic imaging* ; Ultrasonography ; Ultrasonography, Interventional/methods*

No abstract available.
Brachytherapy/*methods ; Female ; Humans ; Radiotherapy, Conformal/*methods ; Ultrasonography, Interventional/*methods ; Uterine Cervical Neoplasms/*radiography

No abstract available.
Brachytherapy/*methods ; Female ; Humans ; Radiotherapy, Conformal/*methods ; Ultrasonography, Interventional/*methods ; Uterine Cervical Neoplasms/*radiography

OBJECTIVE: To demonstrate a comprehensive review of published articles regarding endoscopic ultrasound (EUS)-guided biliary drainage. MATERIALS AND METHODS: Review of studies regarding EUS-guided biliary drainage including case reports, case series and previous reviews. RESULTS: EUS-guided hepaticogastrostomy, coledochoduodenostomy and choledoantrostomy are advanced biliary and pancreatic endoscopy procedures, and together make up the echo-guided biliary drainage. Hepaticogastrostomy is indicated in cases of hilar obstruction, while the procedure of choice is the coledochoduodenostomy or choledochoantrostomy in distal lesions. Both procedures must be performed only after unsuccessful ERCPs. The indication of these procedures must be made under a multidisciplinary view while sharing information with the patient or legal guardian. CONCLUSION: Hepaticogastrostomy and coledochoduodenostomy or choledochoantrostomy are feasible when performed by endoscopists with expertise in biliopancreatic endoscopy. Advanced echo-endoscopy should currently be performed under a rigorous protocol in educational institutions.
Bile Duct Diseases/*surgery/ultrasonography ; Cholangiopancreatography, Endoscopic Retrograde ; Choledochostomy/methods ; Drainage/*methods ; Endosonography/*methods ; Gastrostomy/methods ; Humans ; *Ultrasonography, Interventional

This study aims to compare the prostate cancer detection rate between magnetic resonance imaging (MRI)-transrectal ultrasound (TRUS) cognitive fusion targeted biopsy and systematic biopsy. A total of 614 patients who underwent transrectal prostate biopsy during 2016-2018 with multiparametric magnetic resonance imaging (mpMRI) were included. All patients with a PI-RADS V2 score ≥ 3 accepted both targeted biopsy and systematic biopsy, and those with a PI-RADS V2 score ≤ 2 only accepted systematic biopsy. Overall prostate cancer detection rate between the two biopsies was compared. MRI-TRUS cognitive fusion targeted biopsy identified 342 cases (75.7%) of prostate cancer while systematic biopsy identified 358 cases (79.2%). There was no significant difference in the detection rate between the two groups ( = 1.621, = 0.203). Targeted biopsy had significant fewer biopsy cores compared with systematic biopsy, reducing (9.3 ± 0.11) cores ( < 0.001) in average. Targeted biopsy had about 10.8% ( < 0.001) more tumor tissues in positive cores compared with systematic biopsy. The results show that both MRI-TRUS cognitive fusion targeted biopsy and systematic biopsy have good detection rate on prostate cancer. Cognitive targeted biopsy may reduce biopsy cores and provide more tumor tissues in positive cores.
Biopsy ; methods ; Humans ; Image-Guided Biopsy ; Magnetic Resonance Imaging, Interventional ; Male ; Prospective Studies ; Prostatic Neoplasms ; diagnostic imaging ; Ultrasonography, Interventional