Related Experiment Video
Updated: Aug 17, 2026

Transradial Access Chemoembolization for Hepatocellular Carcinoma Patients
Published on: September 20, 2020
[Coronary angiography by transradial approach with 5F universal catheter]
Rui Lu1, Min Yao, Shu-bin Qiao
1Department of Cardiology, Cardiovascular Institute and Fu Wai Hospital, Chinese Academy of Medical Sciences and Peking Union Medical University, Beijing 100037, China.
Insights
Transradial coronary angiography using a 5F universal catheter is safe and effective. The improved Terumo catheter demonstrated a higher success rate and shorter procedure times, making it a recommended option for this diagnostic procedure.
Area of Science:
- Cardiovascular Medicine
- Interventional Cardiology
- Diagnostic Imaging
Background:
- The transradial approach (TRA) is increasingly utilized for coronary angiography due to its benefits.
- Optimizing catheter selection is crucial for procedural success and patient outcomes in TRA.
Purpose of the Study:
- To evaluate the efficacy and feasibility of using a 5F universal catheter for transradial coronary angiography.
- To compare the performance of different 5F universal catheter types in terms of success rate, procedure duration, and fluoroscopy time.
Main Methods:
- A prospective study involving 3094 patients undergoing transradial coronary angiography.
- Patients were categorized into three groups based on the 5F catheter used: improved Terumo, standard Terumo, and Medtronic.
- Key procedural outcomes including success rate, operation time, and fluoroscopy duration were analyzed and compared.
Main Results:
- The overall procedure success rate was high across all groups, exceeding 96%.
- The improved Terumo catheter group exhibited a significantly higher success rate (98.4%) compared to the Medtronic group (96.0%).
- Procedural and fluoroscopy times were significantly shorter in the improved Terumo group compared to the Medtronic group.
Conclusions:
- Transradial coronary angiography with small-diameter universal catheters is a safe, effective, and easily performed procedure.
- Catheter choice significantly impacts the safety, efficacy, and quality of transradial coronary angiography.
- The improved Terumo 5F catheter shows excellent performance and warrants wider adoption.
Objective:
To probe the efficacy and feasibility of the transradial approach for diagnostic coronary angiography with 5F universal catheter.
Methods:
Transradial coronary angiography was performed in 3094 consecutive patients, 2396 men and 698 women, aged 30 - 81 years, mean age (56.1 +/- 9.8) years, from July 2000 to April 2004. Patients were divided into 5F improved Terumo catheter group (improved Terumo group, n = 985), 5F universal Terumo catheter group (Terumo group, n = 1024) and 5F universal Medtronic catheter group (Medtronic group, n = 1085). The procedure success rate, duration of operation and fluoroscopy between groups were compared.
Results:
The procedure success rate was 98.4% in improved Terumo group, 98.0% in Terumo group, and 96.0 % in Medtronic group, respectively. The success rate was higher in improved Terumo group than in Medtronic group (P < 0.05). The average duration of operation and fluoroscopy in improved Terumo group was (17.9 +/- 5.8) min and (4.8 +/- 1.8) min, in Terumo group was (18.2 +/- 5.5) min and (5.0 +/- 1.7) min, but (21.1 +/- 7.2) min and (5.2 +/- 1.9) min in Medtronic group. There were significant differences among group (P < 0.05).
Conclusions:
(1) Transradial coronary angiography with small diameter universal catheter is safe and easy to perform with a higher success rate and allow earlier patient ambulation, and should be strongly encouraged and recommended. (2) Option of angiographic catheter plays a key role in the safety, efficacy and quality of transradial coronary angiography. Seemingly, the improved Terumo group was excellent and shoud be popularized.
Related Concept Videos
Cardiac Catheterization III: Left Heart Catheterization
Cardiac Catheterization I: Pre-Procedure Overview
Cardiac Catheterization II: Right Heart Catheterization
Imaging Studies for Cardiovascular System V: CT
Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Imaging Studies VII: Vascular Imaging
