In vivo validation of intravascular ultrasound length measurements using a motorized transducer pullback system.
Using sonoreflective endovascular targets of known length (stainless steel tubular slotted stents), we have validated in vivo the accuracy and reproducibility of intravascular ultrasound length measurements using a system incorporating motorized transducer pullback through a stationary imaging sheath. The correlation was r = 0.936, with a measurement error of only +/- 5.2%, minimal intraobserver variability, and variability of sequential measurements of only +/- 4.8%.
Fuessl
R T
RT
Intravascular Ultrasound Imaging and Cardiac Catheterization Laboratories, Washington Hospital Center, Washington, DC, USA.
Mintz
G S
GS
Pichard
A D
AD
Kent
K M
KM
Satler
L F
LF
Popma
J J
JJ
Leon
M B
MB
D000368:Aged; D003331:Coronary Vessels / Q000000981:diagnostic imaging*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D015607:Stents; D014159:Transducers; D018084:Ultrasonography, Interventional / Q000295:instrumentation