Predictors of Radial Artery Size in Patients Undergoing Cardiac Catheterization: Insights From the Good Radial Artery Size Prediction (GRASP) Study

First-in-Human Study of Acoustic Angiography in the Breast and Peripheral Vasculature

“…On the left (1A), an extent of approximately 2.5 cm of the radial artery is shown, while the image on the right (1B) is enlarged to show detail from a different subject. The diameters of the radial arteries visible in these images was measured to be between 1.5 and 2 mm wide, consistent with the range observed in other measurements of radial artery size (Kotowycz, et al 2014). …”

Impact of sheath size and hemostasis time on radial artery patency after transradial coronary angiography and intervention in Japanese and non‐Japanese patients: A substudy from RAP and BEAT (Radial Artery Patency and Bleeding, Efficacy, Adverse evenT) randomized multicenter trial

“…As such, it provides an ideal opportunity to study whether patient‐level differences affect RAO. For example, Japanese patients may have smaller radial arteries, resulting in a higher incidence of radial artery injury and occlusion when using larger sheaths . Furthermore, little is known about the impact of hemostasis care on the rate of RAO in different populations undergoing TR access.…”

Radial artery ultrasound predicts the success of transradial coronary angiography

“…The most frequent complication after TRA is RAO; its incidence of around 5% may be higher for smaller RADs [8,12]. Multiple factors, such as sex, wrist circumference, and family history, can predict radial artery size [18]. The Allen test is widely used to evaluate the patency of the radial and ulnar arteries and the sufficiency of the palmar arch collateral circulation before CCA, but the clinical validity of the test before TRA is questionable [19].…”