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List of works by Koichi Okuda

A European myocardial (123)I-mIBG cross-calibration phantom study.

scientific article published on 24 January 2017

Ability of the prognostic model of J-ACCESS study to predict cardiac events in a clinical setting: The APPROACH study

scientific article published on 6 January 2018

Application of a medium-energy collimator for I-131 imaging after ablation treatment of differentiated thyroid cancer

scientific article published on 08 April 2014

Assessment of olfactory nerve by SPECT-MRI image with nasal thallium-201 administration in patients with olfactory impairments in comparison to healthy volunteers

scientific article

Attenuation correction of myocardial SPECT by scatter-photopeak window method in normal subjects

scientific article published on 2 May 2009

Cause of apical thinning on attenuation-corrected myocardial perfusion SPECT.

scientific article published in November 2011

Characterization of Japanese standards for myocardial sympathetic and metabolic imaging in comparison with perfusion imaging.

scientific article

Clinical usefulness of novel cardiac MDCT/SPECT fusion image

scientific article published on 02 July 2009

Comparison of diagnostic performance of four software packages for phase dyssynchrony analysis in gated myocardial perfusion SPECT.

scientific article published on 23 March 2017

Comparison of phase dyssynchrony analysis using gated myocardial perfusion imaging with four software programs: Based on the Japanese Society of Nuclear Medicine working group normal database

scientific article

Correction of iodine-123-labeled meta-iodobenzylguanidine uptake with multi-window methods for standardization of the heart-to-mediastinum ratio.

scientific article published in November 2007

Creation and characterization of normal myocardial perfusion imaging databases using the IQ·SPECT system

scientific article published on 3 January 2017

Cross calibration of 123I-meta-iodobenzylguanidine heart-to-mediastinum ratio with D-SPECT planogram and Anger camera

scientific article published on 8 July 2017

Development and validation of a direct-comparison method for cardiac (123)I-metaiodobenzylguanidine washout rates derived from late 3-hour and 4-hour imaging.

scientific article published on 23 August 2015

Diagnostic Performance of Artificial Neural Network for Detecting Ischemia in Myocardial Perfusion Imaging.

scientific article published on 3 April 2015

Diagnostic accuracy of an artificial neural network compared with statistical quantitation of myocardial perfusion images: a Japanese multicenter study.

scientific article

Estimation of cardiac event risk by gated myocardial perfusion imaging and quantitative scoring methods based on a multi-center J-ACCESS database.

scientific article

IQ-SPECT for thallium-201 myocardial perfusion imaging: effect of normal databases on quantification.

scientific article published on 12 April 2017

IQ·SPECT technology and its clinical applications using multicenter normal databases.

scientific article published on 22 September 2017

Impact of iterative reconstruction with resolution recovery in myocardial perfusion SPECT: phantom and clinical studies

scientific article published on 23 December 2019

Improved quantification of small hearts for gated myocardial perfusion imaging.

scientific article published on 30 April 2013

Influence of ROI definition on the heart-to-mediastinum ratio in planar 123I-MIBG imaging

scientific article published on 01 November 2016

Is 123I-metaiodobenzylguanidine heart-to-mediastinum ratio dependent on age? From Japanese Society of Nuclear Medicine normal database.

scientific article published on 15 January 2018

Making the invisible visible: Phase dyssynchrony has potential as a new prognostic marker

scientific article published on 25 May 2017

Multicenter cross-calibration of I-123 metaiodobenzylguanidine heart-to-mediastinum ratios to overcome camera-collimator variations.

scientific article

Normal values and standardization of parameters in nuclear cardiology: Japanese Society of Nuclear Medicine working group database

scientific article

Nuclear myocardial perfusion imaging using thallium-201 with a novel multifocal collimator SPECT/CT: IQ-SPECT versus conventional protocols in normal subjects

scientific article published on 29 March 2015

Optimization of iterative reconstruction parameters with attenuation correction, scatter correction and resolution recovery in myocardial perfusion SPECT/CT.

scientific article published on 9 November 2013

Phase dyssynchrony and (123)I-meta-iodobenzylguanidine innervation imaging towards standardization.

scientific article published on 18 September 2017

Prognostic value of olfactory nerve damage measured with thallium-based olfactory imaging in patients with idiopathic olfactory dysfunction

scientific article

Quantification of Myocardial Perfusion Defect Size in Rats: Comparison between Quantitative Perfusion SPECT and Autoradiography.

scientific article published on 16 January 2018

Quantification of myocardial perfusion SPECT using freeware package (cardioBull).

scientific article published on 23 June 2011

Reducing the small-heart effect in pediatric gated myocardial perfusion single-photon emission computed tomography.

scientific article

Regional wall thickening in gated myocardial perfusion SPECT in a Japanese population: effect of sex, radiotracer, rotation angles and frame rates

scientific article published on 29 April 2008

Semi-automated algorithm for calculating heart-to-mediastinum ratio in cardiac Iodine-123 MIBG imaging

scientific article published on 23 November 2010

Serial examination of cardiac function and perfusion in growing rats using SPECT/CT for small animals

scientific article published on 13 January 2020

Standardization of 123I-meta-iodobenzylguanidine myocardial sympathetic activity imaging: phantom calibration and clinical applications.

scientific article

Standardization of metaiodobenzylguanidine heart to mediastinum ratio using a calibration phantom: effects of correction on normal databases and a multicentre study ⬇️

scientific article published on October 19, 2011

Standardization of the heart-to-mediastinum ratio of 123I-labelled-metaiodobenzylguanidine uptake using the dual energy window method: feasibility of correction with different camera-collimator combinations

scientific article

The relationship between stress-induced myocardial ischemia and coronary artery atherosclerosis measured by hybrid SPECT/CT camera

scientific article published on 22 July 2011

The time has come to standardize (123)I-MIBG heart-to-mediastinum ratios including planar and SPECT methods

scientific article published on 23 November 2015

The validity of multi-center common normal database for identifying myocardial ischemia: Japanese Society of Nuclear Medicine working group database.

scientific article published on 25 December 2009

Validation of the left ventricular ejection fraction with IQ-SPECT system in small-heart patients.

scientific article published on 13 June 2017

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