Eisuke Usui
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View article: Cardiac Involvement in a Patient With Aortic Aneurysm, Familial Thoracic-8
Cardiac Involvement in a Patient With Aortic Aneurysm, Familial Thoracic-8 Open
Clinicians should be aware that AAT-8 can present with severe cardiomyopathy and coronary ectasia.
View article: Epicardial Coronary Spasm in Left Anterior Descending Artery and Coronary Microvascular Spasm in Right Coronary Artery
Epicardial Coronary Spasm in Left Anterior Descending Artery and Coronary Microvascular Spasm in Right Coronary Artery Open
A 71-year-old woman presented with rest angina. A spasm provocation test (SPT) using acetylcholine (Ach) confirmed epicardial coronary vasospasm in the left anterior descending artery (LAD) and coronary microvascular spasm (MVS) in the rig…
View article: Characteristic Findings of Honeycomb-Like Structures in Patients With Chronic Coronary Syndrome Complicated With Myeloproliferative Neoplasms
Characteristic Findings of Honeycomb-Like Structures in Patients With Chronic Coronary Syndrome Complicated With Myeloproliferative Neoplasms Open
A 76-year-old woman with a history of essential thrombocythemia and a 64-year-old man with a history of polycythemia vera were both found to have coronary artery stenosis on coronary computed tomographic angiography. Intravascular imaging …
View article: Clinical Significance of Coronary Flow Reserve Improvement After Elective Percutaneous Coronary Intervention
Clinical Significance of Coronary Flow Reserve Improvement After Elective Percutaneous Coronary Intervention Open
Background Limited research has explored the prognostic significance of changes in coronary flow velocity reserve (CFVR), as measured by stress‐transthoracic Doppler echocardiography (S‐TDE), following elective percutaneous coronary interv…
View article: Long-term clinical significance of the presence of puff-chandelier ruptures detected by non-obstructive aortic angioscopy
Long-term clinical significance of the presence of puff-chandelier ruptures detected by non-obstructive aortic angioscopy Open
Although studies have reported various patterns of atherosclerotic aortic plaques (AAPs) detected by non-obstructive aortic angioscopy (NOA), the long-term outcomes associated with AAPs such as puff-chandelier rupture atheromatous plaque (…
View article: Serial Assessment of Extracellular Volume Fraction Derived on Coronary Computed Tomography Angiography in Takotsubo Cardiomyopathy
Serial Assessment of Extracellular Volume Fraction Derived on Coronary Computed Tomography Angiography in Takotsubo Cardiomyopathy Open
An 88-year-old woman was transported to the emergency room at our hospital with Takotsubo cardiomyopathy complicated with cardiogenic shock. Clinically indicated computed tomography angiography using a delayed iodine enhancement protocol d…
View article: Discordant diagnosis of coronary microvascular dysfunction by microvascular resistance reserve: Transthoracic Doppler echocardiography vs bolus thermodilution method
Discordant diagnosis of coronary microvascular dysfunction by microvascular resistance reserve: Transthoracic Doppler echocardiography vs bolus thermodilution method Open
MRRS-TDE and MRRB-Thermo showed a very weak correlation in the LAD territory with functionally significant stenosis in patients with CCS. The prevalence of CMD diagnosed using MRRS-TDE and MRRB-Thermo was not comparable, and the diagnostic…
View article: Prognostic Value of Endogenous-Type Coronary Microvascular Dysfunction After Elective Percutaneous Coronary Intervention
Prognostic Value of Endogenous-Type Coronary Microvascular Dysfunction After Elective Percutaneous Coronary Intervention Open
Post-PCI CMD, particularly E-CMD, was significantly associated with worse outcomes in CCS patients. Post-PCI CMD evaluation could guide therapeutic strategies for CCS patients.
View article: Impact of coronary revascularization on coronary flow capacity measured by transthoracic Doppler echocardiography in patients with chronic coronary syndrome
Impact of coronary revascularization on coronary flow capacity measured by transthoracic Doppler echocardiography in patients with chronic coronary syndrome Open
Coronary flow capacity (CFC) integrates quantitative assessment of hyperemic myocardial blood flow and coronary flow reserve. We aimed to evaluate the effect of elective percutaneous coronary revascularization (PCI) on CFC using serial str…
View article: Impact of Coronary Revascularization on Coronary Flow Capacity Measured by Transthoracic Doppler Echocardiography in Patients with Chronic Coronary Syndrome
Impact of Coronary Revascularization on Coronary Flow Capacity Measured by Transthoracic Doppler Echocardiography in Patients with Chronic Coronary Syndrome Open
Background Coronary flow capacity (CFC) integrates quantitative assessment of hyperemic myocardial blood flow and coronary flow reserve. We aimed to evaluate the effect of elective percutaneous coronary revascularization (PCI) on CFC using…
View article: Predictors of microvascular spasm by spasm provocation testing in patients having angina with no obstructive coronary arteries
Predictors of microvascular spasm by spasm provocation testing in patients having angina with no obstructive coronary arteries Open
Background Microvascular dysfunction in patients having angina with no obstructive coronary arteries (ANOCA) has been recognized to be associated with poor prognosis, while microvascular spasm (MVS) has not been fully studied due to its di…
View article: Associate variables of coronary computed tomographic angiography-derived extracellular volume fraction and cardiac magnetic resonance-derived late-gadolinium enhancement
Associate variables of coronary computed tomographic angiography-derived extracellular volume fraction and cardiac magnetic resonance-derived late-gadolinium enhancement Open
Background Coronary computed tomographic angiography (CCTA) with late-iodine enhancement enables the segmental quantification of extracellular volume (ECV) fraction which represents myocardial fibrosis. However, its association with cardia…
View article: Microvascular functional assessment using microvascular resistance reserve in patients undergoing elective fractional flow reserve-guided percutaneous coronary intervention
Microvascular functional assessment using microvascular resistance reserve in patients undergoing elective fractional flow reserve-guided percutaneous coronary intervention Open
Background Microvascular resistance reserve (MRR) has been proposed as an index for coronary microvascular function. However, the determinants of MRR and the prevalence of coexistent coronary microvascular dysfunction (CMD) in patients wit…
View article: Association between optical coherence tomography-defined culprit morphologies and changes in hyperemic coronary flow after elective stenting assessed by transthoracic Doppler echocardiography
Association between optical coherence tomography-defined culprit morphologies and changes in hyperemic coronary flow after elective stenting assessed by transthoracic Doppler echocardiography Open
Background Stress-transthoracic Doppler echocardiography (S-TDE) provides a noninvasive assessment of coronary flow parameters in the left anterior descending artery (LAD). However, the association between morphological characteristics and…
View article: Predictors of Optical Coherence Tomography-Defined Calcified Nodules in Patients With Acute Coronary Syndrome ― A Substudy From the TACTICS Registry ―
Predictors of Optical Coherence Tomography-Defined Calcified Nodules in Patients With Acute Coronary Syndrome ― A Substudy From the TACTICS Registry ― Open
The TACTICS registry shows that OCT-CN is associated with lesion severity and poor clinical background, which may worsen prognosis.
View article: Level of Perivascular Inflammation Is Significantly Lower Around the Left Internal Mammary Artery Than Around Native Coronary Arteries
Level of Perivascular Inflammation Is Significantly Lower Around the Left Internal Mammary Artery Than Around Native Coronary Arteries Open
Background The left internal mammary artery (LIMA) is protected from developing atherosclerosis. Perivascular inflammation, which is closely associated with atherosclerosis, can be measured by perivascular adipose tissue attenuation on com…
View article: Prognostic Value of Integrated Assessment of Cardiac Magnetic Resonance-Derived Global Coronary Flow Reserve and Cardiopulmonary Exercise Testing-Derived Peak Oxygen Consumption in Patients With Acute Myocardial Infarction
Prognostic Value of Integrated Assessment of Cardiac Magnetic Resonance-Derived Global Coronary Flow Reserve and Cardiopulmonary Exercise Testing-Derived Peak Oxygen Consumption in Patients With Acute Myocardial Infarction Open
Background: This study investigated the prognostic value of cardiovascular magnetic resonance (CMR)-derived global coronary flow reserve (G-CFR) in addition to cardiopulmonary exercise testing (CPET) variables in patients with acute myocar…
View article: Association of Coronary Computed Tomography-Defined Myocardial Bridge With Pre- and Post-Procedural Fractional Flow Reserve in Patients Undergoing Elective Percutaneous Coronary Intervention
Association of Coronary Computed Tomography-Defined Myocardial Bridge With Pre- and Post-Procedural Fractional Flow Reserve in Patients Undergoing Elective Percutaneous Coronary Intervention Open
CCTA-defined MB independently predicted both lower post-PCI FFR as a continuous variable and ischemic FFR as a categorical variable in patients undergoing elective PCI for LAD.
View article: Multimodality Imaging of Fabry Disease Cardiomyopathy Complicated With Coronary Vasospasm
Multimodality Imaging of Fabry Disease Cardiomyopathy Complicated With Coronary Vasospasm Open
A 41-year-old man with resting angina was diagnosed with a coronary vasospasm and subsequently with Fabry disease exhibiting low serum α-galactosidase A activity. High computed tomography (CT)-derived extracellular volume was detected in t…
View article: Noninvasive transthoracic doppler flow velocity and invasive thermodilution to assess coronary flow reserve
Noninvasive transthoracic doppler flow velocity and invasive thermodilution to assess coronary flow reserve Open
Pre-PCI CFRS-TDE and CFRthermo are modestly correlated, but post-PCI CFRS-TDE and CFRthermo have no correlation. CFRS-TDE and CFRthermo are not interchangeable, particularly post-PCI, suggesting that the two metrics represent different cor…
View article: Diagnostic value of computed tomography myocardial perfusion imaging to detect coexisting microvascular dysfunction in patients with obstructive epicardial coronary artery disease
Diagnostic value of computed tomography myocardial perfusion imaging to detect coexisting microvascular dysfunction in patients with obstructive epicardial coronary artery disease Open
Quantitative assessment of absolute coronary flow using pre-percutaneous coronary intervention (PCI) CT-MP, and comprehensive plaque analysis using computed tomography angiography may help detect coexisting subtended microvascular dysfunct…
View article: Residual Microvasuclar Dysfunction (RMVD) after percutaneous coronary intervention (PCI) assessed by stress- transthoracic Doppler echocardiography (S-TDE)
Residual Microvasuclar Dysfunction (RMVD) after percutaneous coronary intervention (PCI) assessed by stress- transthoracic Doppler echocardiography (S-TDE) Open
Background Microvascular dysfunction (MVD) has been increasingly acknowledged as a relevant cause of myocardial ischemia and worse prognosis. Coronary flow velocity reserve (CFVR), an integrated marker of coronary circulation, can be obtai…
View article: Prognostic value of global coronary flow reserve improvement after percutaneous coronary intervention in patients with chronic coronary syndrome
Prognostic value of global coronary flow reserve improvement after percutaneous coronary intervention in patients with chronic coronary syndrome Open
Background Impaired global coronary flow reserve (g-CFR) evaluated by phase-contrast cine cardiovascular magnetic resonance (PC-CMR) has been reported to be associated with worse outcomes in patients with cardiovascular disease. Purpose Th…
View article: Impact of myocardial bridge defined by computed tomographic coronary angiography on fractional flow reserve after elective percutaneous coronary intervention
Impact of myocardial bridge defined by computed tomographic coronary angiography on fractional flow reserve after elective percutaneous coronary intervention Open
Background Myocardial bridge (MB) is a common anomaly of epicardial coronary artery that courses through myocardium. MB can be identified by computed tomographic coronary angiography (CTCA) or invasive coronary angiography (ICA). However, …
View article: Computed tomographic predictors of a lipid-rich plaque identified by near-infrared spectroscopy
Computed tomographic predictors of a lipid-rich plaque identified by near-infrared spectroscopy Open
Background In a phase of primary prevention, individuals with high coronary calcium scores (CACS) assessed by computed tomographic coronary angiography (CTCA) are known to be associated with higher risk of atherosclerotic cardiovascular di…
View article: Prognostic value of preprocedural pericoronary adipose tissue CT-Attenuation in patients with non ST-elevation acute coronary syndrome
Prognostic value of preprocedural pericoronary adipose tissue CT-Attenuation in patients with non ST-elevation acute coronary syndrome Open
Background Pericoronary adipose tissue attenuation expressed by fat attenuation index (FAI) on coronary CT angiography (CCTA) reflects pericoronary inflammation. FAI has been reported to be associated with cardiac mortality in patients wit…