1
|
Teraguchi I, Hozumi T, Emori H, Takemoto K, Maniwa N, Kashiwagi M, Shimamura K, Shiono Y, Kuroi A, Matsuo Y, Ino Y, Kitabata H, Kubo T, Tanaka A, Akasaka T. P91 Prognostic value of tissue-tracking mitral annular displacement by speckle-tracking echocardiography in asymptomatic patients with aortic stenosis with preserved left ventricular ejection fraction. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehz872.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Management of asymptomatic severe aortic stenosis (AS) patients with preserved left ventricular (LV) ejection fraction (EF) remains controversial. Recent studies using have shown that decreased LV longitudinal deformation assessed by global longitudinal strain analysis can predict adverse cardiac events in AS patients with preserved EF. Tissue-tracking mitral annular displacement (TMAD) by speckle-tracking echocardiography provides rapid and simple assessment of LV longitudinal deformation even when the acoustic window is poor (Fig.1).
Purpose
The purpose of this study was to examine the value of TMAD to predict occurrence of the cardiac events in asymptomatic severe AS patients with preserved EF.
Methods
We studied 103 patients with severe AS and preserved EF [aortic velocity >4m/s or aortic valve area (AVA) <1.0 cm2, EF >50%]in whom TMAD was measured, and a total of 44 patients were included in the final data setaccording to the exclusion criteria. Using TMAD analysis software, the base-to-apex displacement of automatically defined mid-point of mitral annular line in four-chamber view was quickly assessed, and the percentage of its displacement to LV length at end-diastole (%TMAD) was calculated (Fig.1). We investigated the association between %TMAD and the cardiac events including implementation of hospitalization due to heart failure, decreased EF (< 50%), aortic valve replacement or transcatheter aortic valve implantation due to appearance of symptoms and cardiac death,
Results
In all the final study patients, %TMAD was successfully and quickly (within 10 seconds) evaluated. During a follow-up, the cardiac events developed in 16 (36%) of 44 patients. Tableshows echocardiographic parameters in patients with and without the cardiac events. %TMAD was significantly impaired in patients with the cardiac events compared with those without the cardiac events (9.6 ± 0.6 vs 12.1 ± 0.4%, p= 0.002). The other parameters were not involved in the event occurrence; age, LV mass index, EF, aortic velocity, AVA, tricuspid regurgitation pressure gradient (TR-PG), early diastolic /atrial filling velocity (E/A), early diastolic velocity of the mitral valve annulus (e’) and E/e’. In multiple variable analysis, %TMAD was an independentpredictor of the cardiac events (HR; 12.1, p= 0.001). ROC analysis revealed that the area under the curve of %TMAD was 0.81 for the cardiac events. Kaplan-Meier analysis showed %TMAD (cut-off: 11.9) provides a significant difference in the cardiac event (Fig. 2). Conclusions. The present results suggests that TMAD easily and rapidly estimated by speckle-tracking echocardiography can be used as a simple method to predict occurrence of the cardiac events in asymptomatic severe AS patients with preserved EF.
Abstract P91 Figure 1,2 and Table
Collapse
Affiliation(s)
- I Teraguchi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - H Emori
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - N Maniwa
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| |
Collapse
|
2
|
Emori H, Kubo T, Tanigaki T, Kawase Y, Shiono Y, Shimamura K, Sobue Y, Matsuo Y, Hirata T, Kitabata H, Ota H, Ino Y, Okubo M, Matsuo H, Akasaka T. P1252Diagnostic performance of quantitative flow ratio from coronary angiography versus fractional flow reserve from computed tomography. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0210] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
QFR and FFRCT are recently developed, less-invasive techniques for functional assessment of coronary artery disease.
Objectives
We compared the diagnostic performance between fractional flow reserve derived from computed tomography (FFRCT) and quantitative flow ratio (QFR) derived from coronary angiography, using FFR as the standard reference.
Methods
We measured FFRCT, QFR and FFR in 152 patients (233 vessels) with stable coronary artery disease.
Results
QFR was highly correlated with FFR (r=0.78, p<0.001), while FFRCT was moderately correlated with FFR (r=0.63, p<0.001). Both QFR and FFRCT showed good agreements with FFR, presenting small values of mean difference and root-mean-squared deviation (FFR -QFR: 0.02±0.09 and FFR -FFRCT: 0.03±0.11). The AUC of QFR was significantly greater than that of 3D-QCA-derived %DS (0.93 vs. 0.78; difference: 0.15; 95% CI: 0.09 to 0.20; p<0.001). The AUC of FFRCTwas significantly greater than that of CCTA-derived %DS (0.82 vs. 0.70; difference: 0.12; 95% CI: 0.05 to 0.19; p<0.001). The AUC of QFR was significantly greater than that of FFRCT (0.93 vs. 0.82; difference: 0.11; 95% CI: 0.05 to 0.16; p<0.001). The sensitivity, specificity, positive predictive value, and negative predictive valueof QFR ≤0.80 for predicting FFR ≤0.80 were 90%, 82%, 81%, and 90%, respectively. Those of FFRCT ≤0.80 for predicting FFR ≤0.80 were 82%, 70%, 70%, and 82%, respectively. The diagnostic accuracy of QFR ≤0.80 for predicting FFR ≤0.80 was 85% [95% confidence interval: 81% to 89%], while that of FFRCT≤0.80 for predicting FFR ≤0.80was 76% [95% confidence interval: 70% to 80%].
Figure 1. Comparison of FFR ≤0.80 predictors
Conclusions
Both QFR and FFRCTpossessed the ability to accurately evaluate the functional severity of coronary stenosis.
Collapse
Affiliation(s)
- H Emori
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | | | | | - Y Shiono
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | - Y Sobue
- Gifu Heart Center, Gifu, Japan
| | - Y Matsuo
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | | | - H Kitabata
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | - H Ota
- Gifu Heart Center, Gifu, Japan
| | - Y Ino
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| | - M Okubo
- Gifu Heart Center, Gifu, Japan
| | | | - T Akasaka
- Wakayama Medical University, Division of cardiovascular medicine, Wakayama, Japan
| |
Collapse
|
3
|
Wada T, Shiono Y, Higashioka D, Kashiwagi M, Shimamura K, Kuroi A, Honda K, Matsuo Y, Kitabata H, Ino Y, Kubo T, Tanaka A, Hozumi T, Nishimura Y, Akasaka T. P2700Impact of instantaneous wave-free ratio on graft failure after coronary artery bypass graft surgery. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.1017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
It has been reported that preoperative fractional flow reserve (FFR) is associated with graft patency after coronary artery bypass graft (CABG) and the patency is excellent when a bypass graft is anastomosed on a vessel with positive FFR. However, the association with graft patency has not yet been investigated in its novel counterpart, instantaneous wave-free ratio (iFR), and iFR sometimes contradicts FFR results.
Purpose
The purpose of this study is to assess an impact of preoperative iFR on a graft failure after CABG in patients with coronary arteries showing positive FFR (≤0.80).
Methods
We retrospectively identified patients who had undergone preoperative coronary angiography in conjunction with resting and hyperemic intra-coronary pressure measurements, CABG, and graft evaluation by coronary computed tomography angiography. After excluding vessels with negative FFR (>0.80), vessels were divided into two groups: negative iFR group (iFR >0.89) and positive iFR group (iFR ≤0.89). The rate of graft failure within 1 year after CABG was compared between the two groups.
Results
We analyzed 131 vessels in 89 patients (35 vessels in the negative iFR group and 96 vessels in the positive iFR group). The negative iFR group showed significantly higher iFR (0.92±0.02 vs. 0.74±0.13, P<0.0001) and FFR (0.72±0.06 vs. 0.63±0.09, P<0.0001) than the positive iFR group, although percent diameter stenosis (%DS) was comparable (57±10 vs. 56±9, P=0.47). The graft failure significantly often occurred in the negative iFR group than in the positive iFR group (28.6% vs. 8.3%, P=0.0029). In order to reduce the imbalance in the baseline characteristics except for iFR, 70 vessels were selected by using propensity score matching (n=35 in each group). The propensity score matched vessels also demonstrated significantly higher rate of graft failure in the negative iFR group than in the positive iFR group (28.6% vs. 5.7%, p=0.026) despite much more balanced FFR (0.72±0.06 vs. 0.69±0.07, p=0.02) and %DS (57±10 vs. 57±9, p=1.000).
Conclusions
Even when FFR is positive, the graft failure is likely to occur when a bypass graft is anastomosed on a vessel with negative iFR compared to a vessel with positive iFR.
Acknowledgement/Funding
None
Collapse
Affiliation(s)
- T Wada
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - D Higashioka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Honda
- Wakayama Medical University, Department of Thoracic and Cardiovascular Surgery, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Nishimura
- Wakayama Medical University, Department of Thoracic and Cardiovascular Surgery, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| |
Collapse
|
4
|
Katayama Y, Tanaka A, Kitabata H, Kashiwagi M, Terada K, Emori H, Shiono Y, Kuroi A, Matsuo Y, Ino Y, Kubo T, Hozumi T, Akasaka T. P3387Cholesterol crystals in superficial plaque layer detected by optical coherence tomography as a new morphological feature for plaque rupture. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0263] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
While plaque rupture (PR) is the leading cause of acute myocardial infarction (AMI), other etiologies are also involved in the onset of AMI. Cholesterol crystals (CCs) are usually present abundantly in atherosclerotic plaques, especially in the culprit site of AMI. However, the relationship between in vivo CCs and PR is unclear. Optical coherence tomography (OCT) is a high-resolution imaging technique that allows for the in vivo identification of various plaque characteristics including PR and CCs.
Purpose
The aim of this study was to investigate prevalence and distribution of CCs between patients with AMI with PR, AMI without PR, and SAP.
Method
This study consisted of 146 patients with coronary artery disease (AMI with PR; n=64, AMI without PR; n=41, and SAP; n=41) who underwent OCT prior to percutaneous coronary intervention. Plaque characteristics in OCT images were assessed according to the consensus document. We classified the distribution of CCs as follows; superficial type CCs were defined by any of the CCs invading the fibrous cap and remaining CCs as deep type CCs.
Result
There was no statistical difference in clinical characteristics among the three groups. The % diameter stenosis was significantly smaller in the SAP group than others (AMI with PR 91±12% vs. AMI without PR 86±13% vs. SAP 65±9%, p<0.001). The prevalence of CCs was significantly higher in the AMI with PR group than others (AMI with PR 78% vs. AMI without PR 41% vs. SAP 39%, p<0.001). The prevalence of superficial type CCs was significantly different among the groups (AMI with PR 72% vs. AMI without PR 24% vs. SAP 7%, p<0.001). Multivariable logistic analysis demonstrated that lipid plaque (OR 84.5, 95% CI [6.30–11332.33], p<0.001) and superficial type CC (OR 9.5, 95% CI [2.61–34.89], p<0.001) were independent predictors of PR.
Conclusion
Plaque with CCs invading the fibrous cap is frequently associated with PR in patients with AMI, suggesting. In vivo CC detection is a new morphological feature for plaque rupture.
Acknowledgement/Funding
This study was supported by a grant from JSPS KAKENHI (17K09557).
Collapse
Affiliation(s)
- Y Katayama
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - K Terada
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - H Emori
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| |
Collapse
|
5
|
Hozumi T, Nozawa Y, Takemoto K, Nishi T, Wada T, Maniwa N, Kashiwagi K, Shimamura K, Kuroi A, Matsuo Y, Kitabata H, Ino Y, Kubo T, Tanaka A, Akasaka T. P3365Relationship between early diastolic intra-ventricular pressure gradient shortly after aortic valve closure estimated by vector flow mapping and left ventricular diastolic untwisting rate in humans. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Early diastolic suction is an important determinant of early diastolic function. Previous studies using color Doppler M-mode and speckle-tracking echocardiography have shown left ventricular (LV) early diastolic LV untwisting rate is directly related to LV intra-ventricular pressure gradient (IVPG) between LV base and apex during early diastole. Recent introduction of vector flow mapping (VFM) using combination of color Doppler and speckle-tracking echocardiography provides noninvasive and feasible assessment of early diastolic IVPG shortly after aortic valve closure including isovolmic relaxation period (ED-IVPG) in humans. However, relationship between VFM–derived ED-IVPG and early diastolic LV untwisting rate has not been well investigated.
Purpose
The purpose of this study was to examine relationship between ED-IVPG estimated by VFM and LV untwisting rate by speckle-tracking echocardiography.
Methods
The study population consists of 66 patients without segmental wall motion abnormality, significant valvular diseases, and atrial fibrillation who underwent echocardiography for evaluation of LV function (age: 60±15 years, LVEF: 49±16%). From the apical long-axis views by color Doppler echocardiography, we analyzed peak ED-IVPG between LV base and apex just after aortic valve closure (figure) using commercially available VFM analysis software (DAS-RS1, Hitachi). We assessed peak early diastolic LV untwisting rate and LV torsion from LV basal and apical short-axis view by speckle-tracking echocardiography. We evaluated correlation between ED-IVPG and LV untwisting rate. We also evaluated correlation between ED-IVPG and peak systolic LV torsion, LV end-diastolic (EDV) and end-systolic volumes (ESV), ejection fraction (EF), early diastolic velocity (E) of LV inflow, average early diastolic velocity (e') of mitral annulus, and average E/e'.
Results
In all the study patients, ED-IVPG was successfully and quickly evaluated. 1) ED-IVPG correlated well with peak LV untwisting rate (r=0.64, p<0.0001). 2) ED-IVPG significantly correlated with LV torsion, LVEDV, LVESV, and LVEF (r=0.47, r=−0.48, r=−0.46, and r=0.48, respectively, p<0.001). 3) There were no significant correlations between ED-IVPG and other indexes including E, average e', and average E/e'. According to receiver operating characteristic analysis, the best cut-off value of ED-IVPG for determining impaired LV untwisting rate (<80 degrees/s) was found at 0.42 mmHg (sensitivity 81%, specificity 76%, and area under the curve 0.86)
ED-IVPG measurement by VFM
Conclusions
The present results showed that noninvasive VFM-derived peak ED-IVPG shortly after aortic valve closure is related to early diastolic peak LV untwisting rate. ED-IVPG easily and quickly estimated by VFM may be used as an additional index for LV diastolic function.
Collapse
Affiliation(s)
- T Hozumi
- Wakayama Medical University, Wakayama, Japan
| | - Y Nozawa
- Wakayama Medical University, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Wakayama, Japan
| | - T Nishi
- Wakayama Medical University, Wakayama, Japan
| | - T Wada
- Wakayama Medical University, Wakayama, Japan
| | - N Maniwa
- Wakayama Medical University, Wakayama, Japan
| | - K Kashiwagi
- Wakayama Medical University, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Wakayama, Japan
| |
Collapse
|
6
|
Hozumi T, Morimoto J, Takemoto K, Wada T, Maniwa N, Kashiwagi M, Shimamura K, Shiono Y, Kuroi A, Matsuo Y, Kitabata H, Ino Y, Kubo T, Tanaka A, Akasaka T. P2453Value of pre-operative left atrial minimum volume as a surrogate for post-operative symptoms in patients with aortic stenosis who underwent aortic valve replacement. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Previous reports have shown that symptoms after aortic valve replacement (AVR) are not uncommon depending on severity of myocardial fibrosis in patients with severe aortic stenosis (AS). Pre-operative minimum left atrial volume (LAVmin) at end-diastole determined by direct exposure of left ventricular end-diastolic pressure may be used as a surrogate for post-operative symptoms in patients with severe AS undergoing AVR.
Purpose
The purpose of this study was to examine the value of pre-operative echocardiographic LAVmin index (LAVImin) to predict post-operative symptomatic status after AVR in patients with severe AS.
Methods
The study population consisted of 219 patients with severe AS who underwent AVR and were followed up for 1000 days after AVR. Pre-operative maximum LAV index (LAVImax), LAVImin, LA emptying fraction (LAEF), LV volume indexes, LV ejection fraction (LVEF) by biplane Simpson's method, aortic valve area index (AVAI), mean aortic valve pressure gradient (mAV-PG), E/A, mean E/e' from LV inflow and mitral annular velocity, and pulmonary artery systolic pressure (PASP) were evaluated by Doppler echocardiography.
Results
After exclusion of 136 patients who met the exclusion criteria (atrial fibrillation, significant coronary artery disease, significant mitral valve diseases, pacemaker rhythm, and inadequate echocardiographic images), the final study population consisted of 75 patients (75±7 years old, 46 female). During a follow-up, 19 patients (25%) complained post-operative symptoms. There were no significant differences in pre-operative serum hemoglobin, creatinine, BNP, chronic obstructive pulmonary disease, hypertension, diabetes, LV volume indexes, LVEF, AVA, mAV-PG between patients with and without post-operative symptoms. There were significant differences in pre-operative LAVImax, LAVImin, and LAEF between patients with and without post-operative symptoms. (60±15 vs 47±15 ml/m2, 45±15 vs 28±1 ml/m2, and 29±12 vs 42±11 ml/m2, respectively). E/A, mean E/e', and PASP in patients with symptoms were significantly greater compared with patients without symptoms (1.0±0.3 vs 0.7±0.2, 25±3 vs 18±2, 44±17 vs 32±9 mmHg, respectively). In the multivariate analysis, pre-operative LAVImin was the independent predictor of the post-operative symptomatic status after AVR (odds ratio: 1.11, 95% confidence interval: 1.04 - 1.18). Receiver operating characteristic analysis revealed that area under the curve (AUC) of LAVImin (cutoff: 30ml/m2) for post-operative symptoms was the largest (0.84) among the other echocardiographic parameters, and significantly larger than that of mean E/e' (0.67, *p<0.01) and LVEF (0.53, **p<0.05) (figure).
Figure 1. ROC analysis
Conclusions
The present results suggest that pre-operative echocardiographic LAVImin may be used as a surrogate for post-operative symptomatic status after AVR in patients with severe AS.
Collapse
Affiliation(s)
- T Hozumi
- Wakayama Medical University, Wakayama, Japan
| | - J Morimoto
- Wakayama Medical University, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Wakayama, Japan
| | - T Wada
- Wakayama Medical University, Wakayama, Japan
| | - N Maniwa
- Wakayama Medical University, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Wakayama, Japan
| |
Collapse
|
7
|
Terada K, Kubo T, Matsuo Y, Ino Y, Kitabata H, Emori H, Katayama Y, Khalifa A, Shimamura K, Shiono Y, Tanaka A, Hozumi T, Akasaka T. 102Diagnosis of coronary plaque rupture, plaque erosion, and calcified nodule by using near-infrared spectroscopy intravascular ultrasound. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz747.0030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Objectives
This study sought to investigate the ability of near-infrared spectroscopy intravascular ultrasound (NIRS-IVUS) to differentiate among plaque rupture (PR), plaque erosion (PE), and calcified nodule (CN) in acute myocardial infarction (AMI) using an optical coherence tomography (OCT) diagnosis as a reference standard.
Background
In vivo, precise differentiation among PR, PE and CN is a major challenge for intravascular imaging.
Methods
The study enrolled 156 AMI patients who had a de novo culprit lesion in a native coronary artery. The culprit lesions were assessed by both NIRS-IVUS and OCT.
Results
OCT identified 112 PR, 29 PE, and 15 CN. IVUS-detected plaque ulceration showed a high specificity (100%) to identify OCT-PR although the sensitivity (62%) was intermediate. IVUS-detected convex calcium showed a high sensitivity (93%) and specificity (100%) to identify OCT-CN. In NIRS, the maximum lipid core burden index in 4 mm (maxLCBI4mm) was greatest in OCT-PR (values are median [interquartile range]) (671 [530 to 853]), followed by OCT-CN (355 [303 to 432]) and OCT-PE (283 [89 to 357]) (p<0.001). MaxLCBI4mm of <422 was the best cut-off to discriminate OCT-PE from OCT-PR and OCT-CN. The NIRS-IVUS classification algorithm using plaque ulceration, convex calcium, and maxLCBI4mm <422 showed a sensitivity and specificity of 96% and 95% for identifying OCT-PR, 93% and 95% for OCT-PE, and 93% and 100% for OCT-CN, respectively.
NIRS-IVUS classification algorism
Conclusion
Lipid component assessed by NIRS-IVUS was different among OCT-PR, OCT-PE and OCT-CN. The NIRS-IVUS classification algorism was highly sensitive and specific for differentiating these unstable lesion types in AMI.
Acknowledgement/Funding
None
Collapse
Affiliation(s)
- K Terada
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - H Emori
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - Y Katayama
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - A Khalifa
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, cardiovascular medicine, Wakayama, Japan
| |
Collapse
|
8
|
Nishi T, Hozumi T, Takemoto K, Wada T, Maniwa N, Kashiwagi M, Shimamura K, Shiono Y, Kuroi A, Matsuo Y, Kitabata H, Ino Y, Kubo T, Tanaka A, Akasaka T. P4349Simple and rapid estimation of left ventricular longitudinal deformation by tissue-tracking mitral annular displacement in single apical view. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0757] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Noninvasive assessment of left ventricular (LV) deformation using global longitudinal strain (GLS) has prognostic value in patients with and without preserved ejection fraction (EF). Application of speckle-tracking technology to the mitral annulus provides rapid and easy assessment of displacement of septal and lateral mitral annulus and mid-point of mitral annular line in single apical view (TMAD) even in poor echo-image quality. TMAD may be used as a simple index of LV longitudinal deformation in patients with and without preserved EF (Figure).
Purpose
The purpose of this study was to examine whether TMAD can be used as a simple index of LV longitudinal deformation in patients with and without preserved EF.
Methods
The study population consists of 95 patients without segmental wall motion abnormality, significant valvular diseases, and atrial fibrillation in whom both TMAD and GLS measurements were applied by QLAB software (Philips). We estimated GLS from apical 4- and 2-chamber views and apical longitudinal views, and TMAD from apical 4-chamber view. TMAD was automatically and quickly evaluated as the base-to-apex displacement of septal (TMADsep), lateral (TMADlat), and mid-point of annular line (TMADmid) (Figure). The percentage of M-TMAD to LV length from the mid-point of mitral annuls to the apex at end-diastole (%TMADmid) was also calculated. We compared each TMAD values with GLS values by linear regression analysis, and evluated TMAD values by a receiver operating characteristic (ROC) analysis to detect impaired LV longitudinal deformation (|GLS|<12.0%).
Results
TMAD was successfully assessed in 94 of 95 patients (99%) while GLS was measured in 84 of 95 patients (87%, p=0.0082 vs TMAD). There were good correlations between each TMAD index and |GLS| (TMADsep:r=0.77, TMADlat:r=0.81, TMADmid:r=0.82, %TMADmid:r=0.87). According to ROC curve, the best cut-off values for TMADsep, TMADlat, TMADmid, and %TMADmid in determining LV longitudinal deformation were 6.8mm, 8.0mm, 7.8mm, and 9.5% respectively (Table).
Conclusions
The present results suggest that rapid and easy assessment of TMAD in single apical view may be used as a simple index of LV longitudinal deformation.
Collapse
Affiliation(s)
- T Nishi
- Wakayama Medical University, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Wakayama, Japan
| | - T Wada
- Wakayama Medical University, Wakayama, Japan
| | - N Maniwa
- Wakayama Medical University, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Wakayama, Japan
| |
Collapse
|
9
|
Teraguchi I, Hozumi T, Emori H, Takemoto K, Kuroi A, Kameyama T, Yamano T, Matsuo Y, Kitabata H, Ino Y, Yamaguchi T, Kubo T, Tanaka A, Akasaka T. P1755Assessment of systolic dysfunction in asymptomatic patients with severe aortic stenosis and preserved ejection fraction using tissue mitral annular displacement by speckle-tracking echocardiography. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p1755] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- I Teraguchi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - H Emori
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Kameyama
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Yamano
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Yamaguchi
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Department of Cardiovascular Medicine, Wakayama, Japan
| |
Collapse
|
10
|
Hozumi T, Nozawa Y, Teraguchi I, Takemoto K, Ota S, Kashiwagi M, Shimamura K, Kuroi A, Kamayama T, Matsuo Y, Kitabata H, Ino Y, Kubo T, Tanaka A, Akasaka T. P861Relationship between noninvasive assessment of left ventricular intra-ventricular pressure gradients estimated by vector flow mapping and left ventricular systolic and diastolic function. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p861] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Hozumi
- Wakayama Medical University, Wakayama, Japan
| | - Y Nozawa
- Wakayama Medical University, Wakayama, Japan
| | - I Teraguchi
- Wakayama Medical University, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Wakayama, Japan
| | - S Ota
- Wakayama Medical University, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Wakayama, Japan
| | - T Kamayama
- Wakayama Medical University, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Wakayama, Japan
| |
Collapse
|
11
|
Emori H, Kubo T, Ino Y, Matsuo Y, Kitabata H, Tanaka A, Hozumi T, Akasaka T. P4638Diagnostic accuracy of quantitative flow ratio for assessing myocardial ischemia in prior myocardial infarction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H Emori
- Wakayama Medical University, Division of Cardiovascular Medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Division of Cardiovascular Medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Division of Cardiovascular Medicine, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Division of Cardiovascular Medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Division of Cardiovascular Medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Division of Cardiovascular Medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Division of Cardiovascular Medicine, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Division of Cardiovascular Medicine, Wakayama, Japan
| |
Collapse
|
12
|
Katayama Y, Tanaka A, Emori H, Taruya A, Wada T, Maniwa N, Kashiwagi M, Shimamura K, Shiono Y, Matsuo Y, Kitabata H, Ino Y, Kubo T, Hozumi T, Akasaka T. P784Association between cholesterol crystals piercing fibrous cap and plaque rupture in patients with acute coronary syndrome. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p784] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Y Katayama
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - H Emori
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - A Taruya
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - T Wada
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - N Maniwa
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Cardiovasculer medicine, Wakayama, Japan
| |
Collapse
|
13
|
Higashioka D, Shiono Y, Shimamura K, Kuroi A, Kameyama T, Matsuo Y, Kitabata H, Ino Y, Kubo T, Tanaka A, Hozumi T, Akasaka T. P4594The reproducibility of physiological mapping of coronary vessels by angio-coregistration with instantaneous wave-free ratio pullback. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
| | - Y Shiono
- Wakayama Medical University, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Wakayama, Japan
| | - T Kameyama
- Wakayama Medical University, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Wakayama, Japan
| |
Collapse
|
14
|
Maniwa N, Hozumi T, Takemoto K, Ota S, Kashiwagi M, Shimamura K, Shiono Y, Kuroi A, Kameyama T, Matsuo Y, Ino Y, Kitabata H, Kubo T, Tanaka A, Akasaka T. P4667Value of speckle-tracking echocardiographic tricuspid annular displacement for the assessment of right ventricular systolic dysfunction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- N Maniwa
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - T Hozumi
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - K Takemoto
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - S Ota
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - M Kashiwagi
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - K Shimamura
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - Y Shiono
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - A Kuroi
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - T Kameyama
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - Y Matsuo
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - Y Ino
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - H Kitabata
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - T Kubo
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - A Tanaka
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| | - T Akasaka
- Wakayama Medical University, Cardiovascular medicine, Wakayama, Japan
| |
Collapse
|
15
|
Ota S, Ozaki Y, Kuroi A, Kameyama T, Yamano T, Yamaguchi T, Matsuo Y, Kitabata H, Ino Y, Takemoto K, Kubo T, Tanaka A, Hozumi T, Akasaka T. P3327The pattern of myocardial fibrosis detected by cardiovascular magnetic resonance imaging provides prognostic information in patients with idiopathic dilated cardiomyopathy. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
16
|
Teraguchi I, Hozumi T, Takemoto K, Ota S, Ozaki Y, Kuroi A, Kameyama T, Yamano T, Yamaguchi T, Matsuo Y, Kitabata H, Ino Y, Tanaka A, Kubo T, Akasaka T. P3541Assessment of systolic dysfunction in asymptomatic patients with mitral regurgitation and preserved ejection fraction using tissue mitral annular displacement by speckle-tracking echocardiography. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx504.p3541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
17
|
Nishiguchi T, Kubo T, Tanimoto T, Ino Y, Emori H, Terada K, Katayama Y, Taruya A, Teraguchi I, Kameyama T, Matsuo Y, Kitabata H, Tanaka A, Hozumi T, Akasaka T. P1774Effect of early pitavastatin therapy on coronary fibrous-cap thickness assessed by optical coherence tomography in patients with acute coronary syndrome: the ESCORT study. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p1774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
|
18
|
Matsuo Y, Higashioka D, Kubo T, Nishiguchi T, Ozaki Y, Kuroi A, Kameyama T, Yamano T, Ino Y, Kitabata H, Yamaguchi T, Takemoto K, Tanaka A, Hozumi T, Akasaka T. P2338Association of high-risk plaque morphology and hemodynamic significance of coronary artery stenosis. Eur Heart J 2017. [DOI: 10.1093/eurheartj/ehx502.p2338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
19
|
Waksman R, Kitabata H, Dvir D, Loh J, Torguson R, Chen F, Satler L, Pichard A. Comparison of stent axial integrity in first- versus second-generation drug-eluting stents: insights from intravascular ultrasound analysis. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p3045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
20
|
Wada T, Hirata K, Shiono Y, Orii M, Shimamura K, Ishibashi K, Tanimoto T, Yamano T, Ino Y, Kitabata H, Yamaguchi T, Kubo T, Imanishi T, Akasaka T. Coronary flow velocity reserve in three major coronary arteries by transthoracic echocardiography for the functional assessment of coronary artery disease: a comparison with fractional flow reserve. Eur Heart J Cardiovasc Imaging 2013; 15:399-408. [DOI: 10.1093/ehjci/jet168] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
21
|
Matsuo Y, Kubo T, Okumoto Y, Ishibashi K, Komukai K, Tanimoto T, Ino Y, Kitabata H, Hirata K, Imanishi T, Akagi H, Akasaka T. Circulating malondialdehyde-modified low-density lipoprotein levels are associated with the presence of thin-cap fibroatheromas determined by optical coherence tomography in coronary artery disease. Eur Heart J Cardiovasc Imaging 2013; 14:43-50. [DOI: 10.1093/ehjci/jes094] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
|
22
|
|
23
|
Tanaka A, Imanishi T, Kitabata H, Kubo T, Takarada S, Tanimoto T, Kuroi A, Tsujioka H, Ikejima H, Komukai K, Kataiwa H, Okouchi K, Kashiwaghi M, Ishibashi K, Matsumoto H, Takemoto K, Nakamura N, Hirata K, Mizukoshi M, Akasaka T. Lipid-rich plaque and myocardial perfusion after successful stenting in patients with non-ST-segment elevation acute coronary syndrome: an optical coherence tomography study. Eur Heart J 2009; 30:1348-55. [DOI: 10.1093/eurheartj/ehp122] [Citation(s) in RCA: 141] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
|
24
|
Kitabata H, Kubo T, Akasaka T. Identification of multiple plaque ruptures by optical coherence tomography in a patient with acute myocardial infarction: a three-vessel study. Case Reports 2009; 2009:bcr2007124339. [DOI: 10.1136/bcr.2007.124339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|
25
|
Kitabata H, Kubo T, Akasaka T. Identification of multiple plaque ruptures by optical coherence tomography in a patient with acute myocardial infarction: a three-vessel study. Heart 2008; 94:544. [DOI: 10.1136/hrt.2007.124339] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
|