- 著者
- Makoto Natsumeda Gaku Nakazawa Tsutomu Murakami Sho Torii Takeshi Ijichi Yohei Ohno Naoki Masuda Norihiko Shinozaki Nobuhiko Ogata Fuminobu Yoshimachi Yuji Ikari
- 出版者
- The Japanese Circulation Society
- 雑誌
- Circulation Journal (ISSN:13469843)
- 巻号頁・発行日
- vol.79, no.4, pp.802-807, 2015-03-25 (Released:2015-03-25)
- 参考文献数
- 28
- 被引用文献数
- 18 20
Background:Percutaneous coronary intervention (PCI) guided with fractional flow reserve (FFR) has been shown to improve clinical outcome. Although coronary angiography is the standard method for PCI guidance, the visual severity of stenosis is not always correlated with functional severity, suggesting that there are additional angiographic factors that affect functional ischemia.Methods and Results:To evaluate angiographic predictors of positive FFR in stenotic lesions, angiographic characteristics of 260 consecutive patients (362 lesions) who underwent FFR testing from April 2009 to September 2012 were analyzed. A scoring system (STABLED score) using these predictors was developed and compared with quantitative coronary angiography (QCA). %Diameter stenosis >50% (OR, 8.43; P<0.0001), tandem lesion (OR, 4.00; P<0.0001), true bifurcation (OR, 2.42; P=0.028), lesion length >20 mm (OR, 5.40; P=0.0002), and distance from ostium <20 mm (OR, 1.94; P=0.028) were determined as independent predictors of positive FFR. Area under the ROC curve for probability of positive FFR using the STABLED score (Stenosis 2 points, TAndem lesion 1 point, Bifurcation 1 point, LEsion length 1 point, Distance from ostium 1 point) was 0.85, higher than that for QCA stenosis alone (0.76). STABLED score ≥3 had 72.3% sensitivity and 83.6% specificity for predicting positive FFR, and PPV was 76.7%.Conclusions:Specific angiographic features are applicable for predicting functional ischemia. STABLED score correlates well with FFR. (Circ J 2015; 79: 802–807)
- 著者
- Shuhei Shibukawa Natsuo Konta Tetsu Niwa Makoto Obara Yuta Akamine Norihiko Shinozaki Takashi Okazaki Yui Nagafuji Tosiaki Miyati
- 出版者
- Japanese Society for Magnetic Resonance in Medicine
- 雑誌
- Magnetic Resonance in Medical Sciences (ISSN:13473182)
- 巻号頁・発行日
- pp.tn.2019-0172, (Released:2020-07-13)
- 参考文献数
- 14
- 被引用文献数
- 2 1
This study aimed to assess the feasibility for applying enhanced acceleration-selective arterial spin labeling (eAccASL) to non-electrocardiogram-gated and non-enhanced peripheral MRA. We compared eAccASL and background suppressed single shot turbo field echo (TFE)-triggered angiography non-contrast-enhanced sequence (BASS TRANCE) required electrocardiographic-gating in eight volunteers and three patients. In the volunteer study, eAccASL demonstrated a comparable arterial visualization compared with BASS TRANCE. In patient observation, the advantages with eAccASL were found in arterial visualization on the collateral vessels and without artifacts affected by arrhythmia events.
- 著者
- Norihiko Shinozaki
- 出版者
- The Japanese Society of Internal Medicine
- 雑誌
- Internal Medicine (ISSN:09182918)
- 巻号頁・発行日
- vol.51, no.12, pp.1527-1530, 2012 (Released:2012-06-15)
- 参考文献数
- 12
- 被引用文献数
- 2 2
A 78-year-old man had right foot ulceration. The skin perfusion pressure (SPP) at the dorsum was 12 mmHg. Angiography revealed right iliac artery occlusion and diffuse stenosis of right superficial femoral artery. After stenting of the iliac arteries, the SPP was still 23 mmHg. Hence, we also inserted stents in the right superficial femoral artery. The anterior tibial artery remained stenosed, and the posterior tibial and fibular arteries were occluded. However, as the SPP had increased to 46 mmHg the treatment was discontinued. The ulcers improved. Measurement of SPP during a procedure may be useful in determining the treatment endpoint.