TY - JOUR
T1 - First-in-man evaluation of intravascular optical frequency domain imaging (OFDI) of Terumo
T2 - A comparison with intravascular ultrasound and quantitative coronary angiography
AU - Okamura, Takayuki
AU - Onuma, Yoshinobu
AU - García-García, Héctor M.
AU - Van Geuns, Robert Jan M.
AU - Wykrzykowska, Joanna J.
AU - Schultz, Carl
AU - Van Der Giessen, Willem J.
AU - Ligthart, Jurgen
AU - Regar, Evelyn
AU - Serruys, Patrick W.
PY - 2011/4/1
Y1 - 2011/4/1
N2 - Aims: The objective of this study is to evaluate the feasibility and safety of imaging human coronary arteries in vivo by optical frequency domain imaging (OFDI) in comparison to intravascular ultrasound (IVUS). OFDI has been recently developed to overcome the limitations of conventional time-domain optical coherence tomography (OCT), namely the need for proximal balloon occlusion. The Terumo-OFDI system is capable of acquiring images with high-speed automated pullback (up to 40 mm/sec) and requires only a short injection (3-4 sec) of small amount of x-ray contrast (9-16 ml). Methods and results: Nineteen patients who underwent stent implantation were enrolled. IVUS/OFDI were performed before and after stenting. The incidences of any adverse event and angiographic adverse findings were recorded. Lumen area (LA) was measured by IVUS and OFDI at 1 mm intervals in the stented segments (n=19) as well as in the proximal, distal, and to-be-stented segments (n=40). In addition, lumen area in the stented segment was also measured by edge (E-) and video-densitometric (VD-) quantitative coronary angiography (QCA). The OFDI images were obtained without any adverse event related to imaging procedures. Post stenting (n=19), minimal LA (MLA) measured by OFDI (5.84±1.89 mm2) was larger than that of E-QCA (4.16±1.46 mm2, p<0.001) and VD-QCA (4.92±1.55 mm2, p<0.05). It was smaller than IVUS-MLA (6.26±2.01 mm2, N.S.) but the correlation between the two measurements was highly significant (R2=0.82, p<0.001). Conclusions: The OFDI imaging is feasible both before and after stenting and has a promising safety profile. The OFDI provided clear high resolution images and robust lumen measurements.
AB - Aims: The objective of this study is to evaluate the feasibility and safety of imaging human coronary arteries in vivo by optical frequency domain imaging (OFDI) in comparison to intravascular ultrasound (IVUS). OFDI has been recently developed to overcome the limitations of conventional time-domain optical coherence tomography (OCT), namely the need for proximal balloon occlusion. The Terumo-OFDI system is capable of acquiring images with high-speed automated pullback (up to 40 mm/sec) and requires only a short injection (3-4 sec) of small amount of x-ray contrast (9-16 ml). Methods and results: Nineteen patients who underwent stent implantation were enrolled. IVUS/OFDI were performed before and after stenting. The incidences of any adverse event and angiographic adverse findings were recorded. Lumen area (LA) was measured by IVUS and OFDI at 1 mm intervals in the stented segments (n=19) as well as in the proximal, distal, and to-be-stented segments (n=40). In addition, lumen area in the stented segment was also measured by edge (E-) and video-densitometric (VD-) quantitative coronary angiography (QCA). The OFDI images were obtained without any adverse event related to imaging procedures. Post stenting (n=19), minimal LA (MLA) measured by OFDI (5.84±1.89 mm2) was larger than that of E-QCA (4.16±1.46 mm2, p<0.001) and VD-QCA (4.92±1.55 mm2, p<0.05). It was smaller than IVUS-MLA (6.26±2.01 mm2, N.S.) but the correlation between the two measurements was highly significant (R2=0.82, p<0.001). Conclusions: The OFDI imaging is feasible both before and after stenting and has a promising safety profile. The OFDI provided clear high resolution images and robust lumen measurements.
KW - Coronary imaging
KW - Intravascular ultrasound
KW - Optical coherence tomography
KW - Optical frequency domain imaging
KW - Stents
UR - http://www.scopus.com/inward/record.url?scp=79960922968&partnerID=8YFLogxK
U2 - 10.4244/EIJV6I9A182
DO - 10.4244/EIJV6I9A182
M3 - Article
C2 - 21518674
AN - SCOPUS:79960922968
VL - 6
SP - 1037
EP - 1045
JO - EUROINTERVENTION : JOURNAL OF EUROPCR IN COLLABORATION WITH THE WORKING GROUP ON INTERVENTIONAL CARDIOLOGY OF THE EUROPEAN SOCIETY OF CARDIOLOGY
JF - EUROINTERVENTION : JOURNAL OF EUROPCR IN COLLABORATION WITH THE WORKING GROUP ON INTERVENTIONAL CARDIOLOGY OF THE EUROPEAN SOCIETY OF CARDIOLOGY
SN - 1774-024X
IS - 9
ER -