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Your search keyword '"Fujii, Kenichi"' showing total 36 results
Start Over Author "Fujii, Kenichi" Journal journal of the american college of cardiology (jacc)
36 results on '"Fujii, Kenichi"'

1. TCT-204 Development and Validation of Artificial Intelligence-Based Algorithms for Predicting the Segments Debulked by Rotational Atherectomy Using Intravascular Ultrasound Images.

Author

Hashimoto, Kenta, Fujii, Kenichi, Ueda, Daiju, Sumiyoshi, Akinori, Hasegawa, Katsuyuki, Fukuhara, Rei, Otagaki, Munemitsu, Okamura, Atsunori, Yamamoto, Wataru, Kawano, Naoki, and Shiojima, Ichiro

Subjects
*ARTIFICIAL intelligence, *ATHERECTOMY, *INTRAVASCULAR ultrasonography, *ULTRASONIC imaging, *ALGORITHMS
Published
2024
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2. Stent underexpansion and residual reference segment stenosis are related to stent thrombosis after sirolimus-eluting stent implantation: An intravascular ultrasound study

Author

Fujii, Kenichi, Carlier, Stéphane G., Mintz, Gary S., Yang, Yi-ming, Moussa, Issam, Weisz, Giora, Dangas, George, Mehran, Roxana, Lansky, Alexandra J., Kreps, Edward M., Collins, Michael, Stone, Gregg W., Moses, Jeffrey W., and Leon, Martin B.

Subjects
*THROMBOSIS, *BLOOD coagulation, *PATIENTS, *SICK people, *MEDICAL care
Abstract

Objectives: We sought to determine the predictors of stent thrombosis after sirolimus-eluting stent (SES) implantation. Background: A number of cases of stent thrombosis have been reported after commercial release of the SES in the “real world,” such that the U.S. Food and Drug Administration issued a warning. Methods: Fifteen patients who developed stent thrombosis after successful SES implantation were analyzed and compared with 45 matched control patients who had no evidence of stent thrombosis. Results: Minimum stent cross-sectional area (MSA) (4.3 ± 1.6 mm2 vs. 6.2 ± 1.9 mm2, p < 0.001) and stent expansion (0.65 ± 0.18 vs. 0.85 ± 0.14, p < 0.001) were significantly smaller in the stent thrombosis group than in the matched control patients. There was no significant difference in the rate of SES malapposition between the groups. However, the presence of a significant residual reference segment stenosis was more common in the stent thrombosis group compared with the matched control group (67% vs. 9%, p < 0.001). Independent predictors of stent thrombosis were stent underexpansion (p = 0.03) and a significant residual reference segment stenosis (p = 0.02). Conclusions: Stent underexpansion and residual reference segment stenosis are associated with stent thrombosis after successful SES implantation. [Copyright &y& Elsevier]

Published
2005
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7. ASSESSMENT OF PERI-STRUT LOW INTENSITY AREAS IDENTIFIED BY OPTICAL COHERENCE TOMOGRAPHY AFTER STENT IMPLANTATION: AN EX VIVO HISTOLOGICAL VALIDATION STUDY.

Author

Kawai, Kenji, Fujii, Kenichi, Hao, Hiroyuki, Shibuya, Masahiko, Imanaka, Takahiro, Saita, Ten, Kawakami, Rika, Tamaru, Hiroto, Sumiyoshi, Akinori, Horimatsu, Tetsuo, Hirota, Seiichi, Masuyama, Tohru, and Ishihara, Masaharu

Subjects
*DIAGNOSIS, *CORONARY disease, *CORONARY heart disease surgery, *HISTORY of medicine, *OPTICAL coherence tomography, *SURGICAL stents, *AUTOPSY
Published
2016
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11. RANDOMIZED COMPARISON OF VASCULAR HEALING RESPONSE BETWEEN SELF-EXPANDING NITINOL STENT AND SELF-EXPANDING PACLITAXEL-ELUTING STENT IN THE SUPERFICIAL FEMORAL ARTERY: AN OPTICAL FREQUENCY DOMAIN IMAGING STUDY.

Author

Miki, Kojiro, Fujii, Kenichi, Fukunaga, Masashi, Imanaka, Takahiro, Tamaru, Hiroto, Sumiyoshi, Akinori, Horimatsu, Tetsuo, Nishimura, Machiko, Saita, Ten, Shibuya, Masahiko, Masuyama, Tohru, and Ishihara, Masaharu

Subjects
*DRUG-eluting stents, *NICKEL-titanium alloys, *FEMORAL artery, *CORONARY disease, *THROMBOSIS, *TRANSPLANTATION of organs, tissues, etc., TREATMENT of vascular diseases
Published
2015
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12. THE DETERMINANT FACTOR OF ANGIOSCOPIC YELLOW PLAQUE: EX VIVO COMPARISON OF ANGIOSCOPY AND HISTOPATHOLOGY.

Author

Shibuya, Masahiko, Fujii, Kenichi, Hao, Hiroyuki, Imanaka, Takahiro, Saita, Ten, Fukunaga, Masashi, Miki, Kojiro, Tamaru, Hiroto, Horimatsu, Tetsuo, Nishimura, Machiko, Sumiyoshi, Akinori, Hirota, Seiichi, Masuyama, Tohru, and Ishihara, Masaharu

Subjects
*ANGIOSCOPY, *ATHEROSCLEROTIC plaque, *HISTOPATHOLOGY, *CARDIOLOGY, *DIAGNOSIS, *PATIENTS
Published
2015
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13. IMPACT OF CLINICAL FRAILTY ON VASCULAR FLOW RESERVE AFTER INFRAPOPLITEAL INTERVENTION IN PATIENTS WITH CRITICAL LIMB ISCHEMIA.

Author

Fukunaga, Masashi, Fujii, Kenichi, Miki, Kojiro, Nishimura, Machiko, Horimatsu, Tetsuo, Saita, Ten, Tamaru, Hiroto, Akinori, Sumiyoshi, Imanaka, Takahiro, Shibuya, Masahiko, Masuyama, Tohru, and Ishihara, Masaharu

Subjects
*BLOOD-vessel physiology, *BLOOD flow, *POPLITEAL artery, *ISCHEMIA diagnosis, *MEDICAL research
Published
2015
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26. 808-2 Creatine kinase-MB elevation after coronary stenting in lesions with ruptured plaque.

Author

Fujii, Kenichi, Kobayashi, Yoshio, Mintz, Gary S, Jacoboff, David, Takebayashi, Hideo, Yasuda, Takenori, Moussa, Issam, Mehran, Roxana, Dangas, George, Lansky, Alexandra J, Kreps, Edward, Collins, Michael, Stone, Gregg W, Leon, Martin B, and Moses, Jeffrey W

Subjects
*CREATINE kinase, *CORONARY artery stenosis, *GENETIC polymorphisms, *RADIOISOTOPE brachytherapy, *ENZYME-linked immunosorbent assay, *LABORATORY rats, *THERAPEUTICS
Published
2004
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27. 1101-45 Contribution of stent underexpansion to target lesion revascularization after sirolimus-eluting stenting for in-stent restenosis.

Author

Fujii, Kenichi, Kobayashi, Yoshio, Mintz, Gary S, Takebayashi, Hideo, Yasuda, Takenori, Jacoboff, David, Moussa, Issam, Mehran, Roxana, Dangas, George, Lansky, Alexandra, Kreps, Edward, Collins, Michael, Stone, Gregg W, Leon, Martin B, and Moses, Jeffrey W

Subjects
*RAPAMYCIN, *CORONARY restenosis, *DRUG-eluting stents, *VENTRICULAR remodeling, *MYOCARDIAL revascularization, *RANDOMIZED controlled trials, *THERAPEUTICS
Published
2004
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29. Bifurcation Coronary Lesions Treated With the “Crush” Technique: An Intravascular Ultrasound Analysis

Author

Costa, Ricardo A., Mintz, Gary S., Carlier, Stephane G., Lansky, Alexandra J., Moussa, Issam, Fujii, Kenichi, Takebayashi, Hideo, Yasuda, Takenori, Costa, Jose R., Tsuchiya, Yoshihiro, Jensen, Lisette O., Cristea, Ecaterina, Mehran, Roxana, Dangas, George D., Iyer, Sriram, Collins, Michael, Kreps, Edward M., Colombo, Antonio, Stone, Gregg W., and Leon, Martin B.

Subjects
*CORONARY arterial radiography, *CORONARY restenosis, *ULTRASONIC imaging, *ARTERIES
Abstract

Objectives: We report intravascular ultrasound (IVUS) findings after crush-stenting of bifurcation lesions. Background: Preliminary results with the crush-stent technique are encouraging; however, isolated reports suggest that restenosis at the side branch (SB) ostium continues to be a problem. Methods: Forty patients with bifurcation lesions underwent crush-stenting with the sirolimus-eluting stent. Postintervention IVUS was performed in both branches in 25 lesions and only the main vessel (MV) in 15 lesions; IVUS analysis included five distinct locations: MV proximal stent, crush area, distal stent, SB ostium, and SB distal stent. Results: Overall, the MV minimum stent area was larger than the SB (6.7 ± 1.7 mm2 vs. 4.4 ± 1.4 mm2, p &#60; 0.0001, respectively). When only the MV was considered, the minimum stent area was found in the crush area (rather than the proximal or MV distal stent) in 56%. When both the MV and the SB were considered, the minimum stent area was found at the SB ostium in 68%. The MV minimum stent area measured &#60;4 mm2 in 8% of lesions and &#60;5 mm2 in 20%. For the SB, a minimum stent area &#60;4 mm2 was found in 44%, and a minimum stent area &#60;5 mm2 in 76%, typically at the ostium. “Incomplete crushing”—incomplete apposition of SB or MV stent struts against the MV wall proximal to the carina—was seen in >60% of non-left main lesions. Conclusions: In the majority of bifurcation lesions treated with the crush technique, the smallest minimum stent area appeared at the SB ostium. This may contribute to a higher restenosis rate at this location. [Copyright &y& Elsevier]

Published
2005
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31. TCT-785 Association between the Platelet Reactivity under Clopidogrel Treatment and the Severity of Angioscopic Intra-stent Thrombus Following Drug-eluting Stent Implantation in the Femoropopliteal Artery.

Author

Ishihara, Takayuki, Iida, Osamu, Kozuki, Amane, Shinke, Toshiro, fukunaga, masashi, Horimatsu, Tetsuo, Fujii, Kenichi, Shite, Junya, Terashita, Daisuke, tsukiyama, yoshiro, Zen, Kan, Takahara, Mitsuyoshi, Uematsu, Masaaki, and Nanto, Shinsuke

Subjects
*BLOOD platelets, *CLOPIDOGREL, *ANGIOSCOPY, *DRUG-eluting stents, *CATHETER-related thrombosis
Published
2016
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32. MECHANISM OF LUMINAL WIDENING AND THE CORRECTION OF PLAQUE- AND CARINA- SHIFT AT SIDE BRANCH OSTIUM BY KISSING BALLOON INFLATION FOR CORONARY BIFURCATION LESIONS: VOLUMETRIC INTRAVASCULAR ULTRASOUND ANALYSIS.

Author

Yamawaki, Masahiro, Yoshinobu, Murasato, Shinke, Toshiro, Fujii, Kenichi, Otake, Hiromasa, Yamada, Shinichiro, Takeda, Yoshihiro, and Kinoshita, Yoshihisa

Subjects
*CORONARY heart disease treatment, *CARDIA, *INTRAVASCULAR ultrasonography, *HEART failure, *CARDIAC imaging
Published
2015
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33. IMPACT OF DIABETES MELLITUS ON VESSEL GEOMETRY AND THE RESPONSE TO FINAL KISSING INFLATION FOLLOWING SINGLE STENTING FOR CORONARY BIFURCATION: ANALYSIS OF VOLUMETRIC INTRAVASCULAR ULTRASOUND AND OPTICAL COHERENCE TOMOGRAPY.

Author

Yamawaki, Masahiro, Murasato, Yoshinobu, Terashita, Daisuke, Shinke, Toshiro, Otake, Hiromasa, Fujii, Kenichi, Takeda, Yoshihiro, Yamada, Shin-Ichiro, and Kinoshita, Yoshihisa

Subjects
*DIABETES, *INTRAVASCULAR ultrasonography, *OPTICAL coherence tomography, *CORONARY disease, *SURGICAL stents, *RAPAMYCIN, *EVEROLIMUS
Published
2015
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35. 1101-41 Intravascular ultrasound assessment of lesions with sirolimus-eluting stent failure.

Author

Takebayashi, Hideo, Kobayashi, Yoshio, Mintz, Gary S, Fujii, Kenichi, Yasuda, Takenori, Mehran, Roxana, Jacoboff, David, Dangas, George D, Lansky, Alexandra J, Moussa, Issam, Collins, Michael B, Kreps, Edward, Stone, Gregg W, Leon, Martin B, and Moses, Jeffrey W

Subjects
*INTRAVASCULAR ultrasonography, *THROMBOSIS risk factors, *DRUG-eluting stents, *RAPAMYCIN, *CLOPIDOGREL
Published
2004
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36. 832-5 Multiple plaque ruptures are not frequent in acute coronary syndrome: A three-vessel intravascular ultrasound study.

Author

Sumitsuji, Satoru, Kobayashi, Yoshio, Okura, Hiroyuki, Terashima, Mitsuyasu, Shimada, Kenei, Masutani, Motomaru, Ohyanagi, Mitsumasa, Kataoka, Toru, Awano, Kojiro, Taguchi, Haruyuki, Yasuga, Yuji, Fujii, Kenichi, and Mintz, Gary S

Subjects
*ACUTE coronary syndrome, *INTRAVASCULAR ultrasonography, *VENTRICULAR remodeling, *ANGINA pectoris, *ELECTRON beam computed tomography, *INFLAMMATION
Published
2004
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