List of works - Koya Ozawa

2D speckle-tracking TTE-based quantitative classification of left ventricular myocardium in patients with hypertrophic cardiomyopathy by the presence or the absence of fibrosis and/or hypertrophy

scientific article published on 22 March 2018

320-slice CT-based finding of aortic wall tissue invasion into left-main coronary artery does not have relationship with coronary risk factors and coronary arteriosclerosis and stenosis

scientific article published on 8 January 2014

A case of osteopetrosis with severe aortic stenosis treated by transcatheter aortic valve implantation

scientific article published on 15 July 2013

A two center 320 slice CT study for evaluating coronary arteries in subjects with chronic atrial fibrillation: a comparison of prospective and retrospective ECG-gating acquisition.

scientific article published on 27 August 2014

Adaptive-Iterative-Dose-Reduction 3D with multisector-reconstruction method in 320-slice CT may maintain accurate-measurement of the Agatston-calcium-score of severe-calcification even at higher pulsating-beats and low tube-current in vitro.

scientific article published on 7 March 2013

An educational intervention to help medical students achieve accurate and consistent measurement of longitudinal myocardial strain on transthoracic echocardiogram

scientific article published on 06 August 2015

Better agreement between independent assessors of three-dimensional global longitudinal strain of whole right ventricle using transthoracic echocardiography than for other three-dimensional right ventricular parameters.

scientific article published on 9 September 2013

CHA2DS2-VASc score is a useful-predictor of not prognosis but coronary-arteriosclerosis in chronic atrial-fibrillation compared with CHADS2 score: a two-center study of 320-slice CT, part 2.

scientific article published on 27 August 2014

Characteristic myocardial strain identified in hypertrophic cardiomyopathy subjects with preserved left ventricular ejection fraction using a novel multi-layer transthoracic echocardiography technique.

scientific article published on 7 February 2015

Clinical significance of fat infiltration in the moderator band and right ventricular myocardium in multislice CT, and its association with abnormal conduction seen in electrocardiogram

scientific article

Combined ostium secundum type ASD and pulmonary arterial thromboembolism causing pulmonary artery enlargement, pulmonary hypertension and recurrent paradoxical cerebral embolism due to deep venous thrombosis

scientific article published on 14 January 2016

Consistencies of 3D TTE global longitudinal strain of both ventricles between assessors were worse for 2D, but better for 3D ventricular EF

scientific article published on 02 July 2015

Consistency of estimated-origin of representative ventricular premature beats by 12-lead ambulatory ECG with late-enhancement site in left-ventricle by CMR with quantitative volumetric threshold in HCM

scientific article published on 08 January 2014

Detection of right ventricular wall motion asynergy confirmed on four-dimensional 320-slice CT by two-dimensional global longitudinal strain of right ventricle using transthoracic-echocardiography in pulmonary hypertension

scientific article published on 5 October 2013

Determination of best post-systolic shortening parameters on resting TTE for detection of left ventricular ischemic segments quantitatively confirmed by invasive fractional flow reserve.

scientific article published on 9 July 2016

Determination of optimum periods between onset of suspected acute myocarditis and ¹⁸F-fluorodeoxyglucose positron emission tomography in the diagnosis of inflammatory left ventricular myocardium.

scientific article published on 8 September 2013

Differentiation of infarcted, ischemic, and non-ischemic LV myocardium using post-systolic strain index assessed by resting two-dimensional speckle tracking transthoracic echocardiography.

scientific article published on 11 June 2016

Early pregnancy-associated cardiomyopathy complicated with a complete hydatidiform mole coexistent with a live fetus and exacerbated by induced abortion

scientific article published on 02 July 2015

Endocardial Fibrotic Lesions Have a Greater Effect on Peak Longitudinal Strain than Epicardial Fibrotic Lesions in Hypertrophic Cardiomyopathy Patients

scientific article published on 23 February 2018

Giant pulmonary trunk with Eisenmenger flow through patent ductus arteriosus

scientific article published on 23 November 2015

Influence of tube voltage and heart rate on the Agatston calcium score using an in vitro, novel ECG-gated dual energy reconstruction 320 slice CT technique

scientific article published on 25 November 2014

LAA CT contrast defects correlate with TEE LAA velocity and CHADS₂-score and are a prognostic indicator for embolism in subjects with atrial fibrillation or flutter

scientific article

Massive myocardial aneurysm due to inferior to posterior myocardial infarction complicated with right-sided heart failure in a 36-year-old male

scientific article published on 12 January 2016

Molecular Imaging of VWF (von Willebrand Factor) and Platelet Adhesion in Postischemic Impaired Microvascular Reflow

scientific article published on 01 November 2018

Multiple infective coronary arteritis complicated with bacterial pericarditis

scientific article published on 20 March 2015

Novel three dimensional myocardial strain parameter thresholds on resting transthoracic echocardiography for detection of left ventricular ischemic segments determined by invasive fractional flow reserve

scientific article published on 28 June 2016

Quantitative Differentiation of LV Myocardium with and without Layer-Specific Fibrosis Using MRI in Hypertrophic Cardiomyopathy and Layer-Specific Strain TTE Analysis

scientific article published on 09 May 2018

Resting multilayer 2D speckle-tracking TTE for detection of ischemic segments confirmed by invasive FFR part-2, using post-systolic-strain-index and time from aortic-valve-closure to regional peak longitudinal-strain

scientific article published on 29 April 2016

Resting multilayer 2D speckle-tracking transthoracic echocardiography for the detection of clinically stable myocardial ischemic segments confirmed by invasive fractional flow reserve. Part 1: Vessel-by-vessel analysis

scientific article published on 14 May 2016

Sigmoid shaped interventricular septum exhibit normal myocardial characteristics and has a relationship with aging, ascending aortic sclerosis and its tilt to left ventricle

scientific article published on 31 July 2013

Specific organized substrates of ventricular fibrillation: comparison of 320-slice CT heart images in non-ischemic ventricular fibrillation subjects with non-ischemic sustained and non-sustained ventricular tachycardia subjects.

scientific article published on 23 January 2013

Successful prediction of MACE by myocardial fibrosis on CT in hypertrophic cardiomyopathy patients without obstructed coronary arteries

scientific article

The CHADS2 score is a useful predictor of coronary arteriosclerosis on 320 slice CT and may correlate with prognosis in subjects with atrial fibrillation

scientific article published on 30 October 2014

The use of whole thoracic ECG-gated MDCT for the de novo diagnosis of isolated patent ductus arteriosus in middle aged or older subjects

scientific article published on 28 August 2016

Two dimensional global longitudinal strain of right ventricle using transthoracic echocardiography can detect right ventricular fibrosis confirmed by 320 slice CT in pulmonary hypertension

scientific article published on 8 January 2014

Utility of three-dimensional global longitudinal strain of the right ventricle using transthoracic echocardiography for right ventricular systolic function in pulmonary hypertension

scientific article published on 15 April 2014

Various morphological-types of all and fragmented ventricular premature beats on a 12-lead Holter-ECG had positive-relationship with occurrence of LV fibrosis on CT in HCM subjects

scientific article published on 3 December 2013

Which number of morphological types of ventricular premature beats predicts poor prognosis in subjects with various cardiomyopathies without obstructed coronary arteries?

scientific article published on 09 July 2014

List of works by Koya Ozawa

2D speckle-tracking TTE-based quantitative classification of left ventricular myocardium in patients with hypertrophic cardiomyopathy by the presence or the absence of fibrosis and/or hypertrophy

320-slice CT-based finding of aortic wall tissue invasion into left-main coronary artery does not have relationship with coronary risk factors and coronary arteriosclerosis and stenosis

A case of osteopetrosis with severe aortic stenosis treated by transcatheter aortic valve implantation

A two center 320 slice CT study for evaluating coronary arteries in subjects with chronic atrial fibrillation: a comparison of prospective and retrospective ECG-gating acquisition.

Adaptive-Iterative-Dose-Reduction 3D with multisector-reconstruction method in 320-slice CT may maintain accurate-measurement of the Agatston-calcium-score of severe-calcification even at higher pulsating-beats and low tube-current in vitro.

An educational intervention to help medical students achieve accurate and consistent measurement of longitudinal myocardial strain on transthoracic echocardiogram

Better agreement between independent assessors of three-dimensional global longitudinal strain of whole right ventricle using transthoracic echocardiography than for other three-dimensional right ventricular parameters.

CHA2DS2-VASc score is a useful-predictor of not prognosis but coronary-arteriosclerosis in chronic atrial-fibrillation compared with CHADS2 score: a two-center study of 320-slice CT, part 2.

Characteristic myocardial strain identified in hypertrophic cardiomyopathy subjects with preserved left ventricular ejection fraction using a novel multi-layer transthoracic echocardiography technique.

Clinical significance of fat infiltration in the moderator band and right ventricular myocardium in multislice CT, and its association with abnormal conduction seen in electrocardiogram

Combined ostium secundum type ASD and pulmonary arterial thromboembolism causing pulmonary artery enlargement, pulmonary hypertension and recurrent paradoxical cerebral embolism due to deep venous thrombosis

Consistencies of 3D TTE global longitudinal strain of both ventricles between assessors were worse for 2D, but better for 3D ventricular EF

Consistency of estimated-origin of representative ventricular premature beats by 12-lead ambulatory ECG with late-enhancement site in left-ventricle by CMR with quantitative volumetric threshold in HCM

Detection of right ventricular wall motion asynergy confirmed on four-dimensional 320-slice CT by two-dimensional global longitudinal strain of right ventricle using transthoracic-echocardiography in pulmonary hypertension

Determination of best post-systolic shortening parameters on resting TTE for detection of left ventricular ischemic segments quantitatively confirmed by invasive fractional flow reserve.

Determination of optimum periods between onset of suspected acute myocarditis and ¹⁸F-fluorodeoxyglucose positron emission tomography in the diagnosis of inflammatory left ventricular myocardium.

Differentiation of infarcted, ischemic, and non-ischemic LV myocardium using post-systolic strain index assessed by resting two-dimensional speckle tracking transthoracic echocardiography.

Early pregnancy-associated cardiomyopathy complicated with a complete hydatidiform mole coexistent with a live fetus and exacerbated by induced abortion

Endocardial Fibrotic Lesions Have a Greater Effect on Peak Longitudinal Strain than Epicardial Fibrotic Lesions in Hypertrophic Cardiomyopathy Patients

Giant pulmonary trunk with Eisenmenger flow through patent ductus arteriosus

Influence of tube voltage and heart rate on the Agatston calcium score using an in vitro, novel ECG-gated dual energy reconstruction 320 slice CT technique

LAA CT contrast defects correlate with TEE LAA velocity and CHADS₂-score and are a prognostic indicator for embolism in subjects with atrial fibrillation or flutter

Massive myocardial aneurysm due to inferior to posterior myocardial infarction complicated with right-sided heart failure in a 36-year-old male

Molecular Imaging of VWF (von Willebrand Factor) and Platelet Adhesion in Postischemic Impaired Microvascular Reflow

Multiple infective coronary arteritis complicated with bacterial pericarditis

Novel three dimensional myocardial strain parameter thresholds on resting transthoracic echocardiography for detection of left ventricular ischemic segments determined by invasive fractional flow reserve

Quantitative Differentiation of LV Myocardium with and without Layer-Specific Fibrosis Using MRI in Hypertrophic Cardiomyopathy and Layer-Specific Strain TTE Analysis

Resting multilayer 2D speckle-tracking TTE for detection of ischemic segments confirmed by invasive FFR part-2, using post-systolic-strain-index and time from aortic-valve-closure to regional peak longitudinal-strain

Resting multilayer 2D speckle-tracking transthoracic echocardiography for the detection of clinically stable myocardial ischemic segments confirmed by invasive fractional flow reserve. Part 1: Vessel-by-vessel analysis

Sigmoid shaped interventricular septum exhibit normal myocardial characteristics and has a relationship with aging, ascending aortic sclerosis and its tilt to left ventricle

Specific organized substrates of ventricular fibrillation: comparison of 320-slice CT heart images in non-ischemic ventricular fibrillation subjects with non-ischemic sustained and non-sustained ventricular tachycardia subjects.

Successful prediction of MACE by myocardial fibrosis on CT in hypertrophic cardiomyopathy patients without obstructed coronary arteries

The CHADS2 score is a useful predictor of coronary arteriosclerosis on 320 slice CT and may correlate with prognosis in subjects with atrial fibrillation

The use of whole thoracic ECG-gated MDCT for the de novo diagnosis of isolated patent ductus arteriosus in middle aged or older subjects

Two dimensional global longitudinal strain of right ventricle using transthoracic echocardiography can detect right ventricular fibrosis confirmed by 320 slice CT in pulmonary hypertension

Utility of three-dimensional global longitudinal strain of the right ventricle using transthoracic echocardiography for right ventricular systolic function in pulmonary hypertension

Various morphological-types of all and fragmented ventricular premature beats on a 12-lead Holter-ECG had positive-relationship with occurrence of LV fibrosis on CT in HCM subjects

Which number of morphological types of ventricular premature beats predicts poor prognosis in subjects with various cardiomyopathies without obstructed coronary arteries?