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

 Wakabayashi 0 Seigo Kinuya 0 0 Department of Physics, Kanazawa Medical University , Uchinada, Kahoku , Japan 1 Kenichi Nakajima Background Heart-to-mediastinum ratios (HMRs) of 123I-metaiodobenzylguanidine

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

Purpose Myocardial sympathetic imaging with 123I-meta-iodobenzylguanidine (123I-mIBG) has gained clinical momentum. Although the need for standardization of 123I-mIBG myocardial uptake has been recognized, the availability of practical clinical standardization approaches is limited. The need for standardization includes the heart-to-mediastinum ratio (HMR) and washout rate with...

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

Ishikawa , Hakusan , Japan 1 Department of Nuclear Medicine, Kanazawa University , 13-1 Takara-machi, Kanazawa 920-8641 , Japan 2 & Kenichi Nakajima 3 Department of Neurology, Hokuriku National Hospital ... ; PI, Kenichi Nakajima). Compliance with ethical standards Conflict of interest Kenichi Nakajima collaborates with FUJIFILM RI Pharma Co. Ltd. (Tokyo, Japan), supplier of 123I-MIBG in Japan, to develop

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

, Japan 2 Department of Nuclear Medicine, Kanazawa University , 13-1 Takara-machi, Kanazawa 920-8641 , Japan 3 Kenichi Nakajima 4 Siemens Medical Solution USA, Inc. , Molecular Imaging, Hoffman Estates, IL

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

Purpose Artificial neural networks (ANN) might help to diagnose coronary artery disease. This study aimed to determine whether the diagnostic accuracy of an ANN-based diagnostic system and conventional quantitation are comparable. Methods The ANN was trained to classify potentially abnormal areas as true or false based on the nuclear cardiology expert interpretation of 1001 gated...

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

Background Phase analysis of gated myocardial perfusion single-photon emission computed tomography (SPECT) for assessment of left ventricular (LV) dyssynchrony was investigated using the following dedicated software packages: Corridor4DM (4DM), cardioREPO (cREPO), Emory Cardiac Toolbox (ECTb), and quantitative gated SPECT (QGS). The purpose of this study was to evaluate the...

Consumption-based accounting of steel alloying elements and greenhouse gas emissions associated with the metal use: the case of Japan

Metal extraction and smelting cause considerable impacts on the environment. Consumption-based impact accounting highlights the responsibility of metal-consuming industries for the impacts and may drive a system-wide improvement in the structure of related supply chains. To drive the improvements, policies at national level coordinated for respective product types across the...

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

Department of Cardiology, Nihon University Hospital , Tokyo , Japan 2 & Kenichi Nakajima 3 Department of Physics, Kanazawa Medical University , Uchinada, Ishikawa , Japan 4 Department of Radiology, National ... Japanese Society of Nuclear Medicine and by Grants-in-Aid for Scientific Research in Japan (PI: Kenichi Nakajima). Emory Cardiac Toolbox was kindly supplied by Syntermed, Inc. (Atlanta, GA, USA) and Corridor

A European myocardial 123I-mIBG cross-calibration phantom study

Received Nov 123 A European myocardial I-mIBG cross-calibration phantom study Derk O. Verschure 2 4 Edwin Poel RN 4 Kenichi Nakajima 3 Koichi Okuda 0 Berthe L.F. van Eck-Smit 4 G. Aernout Somsen 1

Prognostic study of cardiac events in Japanese patients with chronic kidney disease using ECG-gated myocardial Perfusion imaging: Final 3-year report of the J-ACCESS 3 study

Background Myocardial perfusion imaging (MPI) is considered useful for risk stratification among patients with chronic kidney disease (CKD), without renal deterioration by contrast media. Methods and Results The Japanese Assessment of Cardiac Events and Survival Study by Quantitative Gated SPECT (J-ACCESS 3) is a multicenter, prospective cohort study investigating the ability of...

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

Purpose Left ventricular (LV) phase dyssynchrony parameters based on gated myocardial perfusion imaging varied among software programs. The aim of this study was to determine normal ranges and factors affecting phase parameters. Methods Normal databases were derived from the Japanese Society of Nuclear Medicine working group (n = 69). The programs were Emory Cardiac Toolbox with...

Normal values for nuclear cardiology: Japanese databases for myocardial perfusion, fatty acid and sympathetic imaging and left ventricular function

Kenichi Nakajima 0 1 3 0 K. Nakajima (&) Department of Nuclear Medicine, Faculty of Medicine, Institute of Medical, Pharmaceutical and Health Sciences, Kanazawa University , 13-1 Takara-machi ... , Kanazawa 920-8641, Japan 1 Chief of the working group: Kenichi Nakajima (Kanazawa University) , Koichi Okuda, Shinro Matsuo 2 JSNM working group member 3 Guido Germano, Piotr Slomka, Geoff Pollard (Cedars

The use of positron emission tomography/computed tomography imaging in radiation therapy: a phantom study for setting internal target volume of biological target volume

Background Fluorodeoxyglucose (18F-FDG) positron emission tomography/computed tomography (PET/CT) is an important method for detecting tumours, planning radiotherapy treatment, and evaluating treatment responses. However, using the standardized uptake value (SUV) threshold with PET imaging may be suitable not to determine gross tumour volume but to determine biological target...

Myocardial blood flow quantification with SPECT and conventional tracers: a critical appraisal

Stephan G. Nekolla FESC 1 Christoph Rischpler 1 Kenichi Nakajima PhD 0 0 Department of Nuclear Medicine, Institute of Medical, Pharmacological and Health Sciences, Kanazawa University , Kanazawa

Feasibility of deep-inspiration breath-hold PET/CT with short-time acquisition: detectability for pulmonary lesions compared with respiratory-gated PET/CT

Objectives Deep-inspiration breath-hold (DIBH) PET/CT with short-time acquisition and respiratory-gated (RG) PET/CT are performed for pulmonary lesions to reduce the respiratory motion artifacts, and to obtain more accurate standardized uptake value (SUV). DIBH PET/CT demonstrates significant advantages in terms of rapid examination, good quality of CT images and low radiation...

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

manuscript. Conflict of interest Kenichi Nakajima, MD, PhD has a collaborative research work for developing software with FUJIFILM RI Pharma, Co. Ltd, Tokyo, Japan. This article is distributed under the