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List of works by Yoshinori Funama

A computer-simulated liver phantom (virtual liver phantom) for multidetector computed tomography evaluation

scientific article published on 20 October 2005

A hybrid iterative reconstruction algorithm that improves the image quality of low-tube-voltage coronary CT angiography

scientific article published in May 2012

A knowledge-based iterative model reconstruction algorithm: can super-low-dose cardiac CT be applicable in clinical settings?

scientific article published in January 2014

A low tube voltage technique reduces the radiation dose at retrospective ECG-gated cardiac computed tomography for anatomical and functional analyses

scientific article published on 04 May 2011

A newly-developed metal artifact reduction algorithm improves the visibility of oral cavity lesions on 320-MDCT volume scans

scientific article published on 22 October 2014

Abdominal CT with low tube voltage: preliminary observations about radiation dose, contrast enhancement, image quality, and noise

scientific article

Added value of a single-energy projection-based metal-artifact reduction algorithm for the computed tomography evaluation of oral cavity cancers

scientific article

Additive value of split-bolus single-phase CT scan protocol for preoperative assessment of lung cancer patients referred for video-assisted thoracic surgery

scientific article published on 25 October 2019

Analysis of the anatomical features of pulmonary veins on pre-procedural cardiac CT images resulting in incomplete cryoballoon ablation for atrial fibrillation

scientific article published on 14 November 2018

Aortic and Hepatic Contrast Enhancement During Hepatic-Arterial and Portal Venous Phase Computed Tomography Scanning: Multivariate Linear Regression Analysis Using Age, Sex, Total Body Weight, Height, and Cardiac Output

scientific article

Assessment of Diffuse Ventricular Fibrosis in Atrial Fibrillation Using Cardiac CT-Derived Myocardial Extracellular Volume Fraction

scientific article published on 07 October 2020

Automatic exposure control at MDCT based on the contrast-to-noise ratio: theoretical background and phantom study

scientific article published on 17 December 2011

Automatic exposure control at single- and dual-heartbeat CTCA on a 320-MDCT volume scanner: effect of heart rate, exposure phase window setting, and reconstruction algorithm

scientific article published on 10 November 2013

Automatic tube current modulation technique for multidetector CT: is it effective with a 64-detector CT? ⬇️

scientific article published on November 1, 2007

Baseline incidence and severity of renal insufficiency evaluated by estimated glomerular filtration rates in patients scheduled for contrast-enhanced CT

scientific article published on 28 March 2011

Basic Concepts of Contrast Injection Protocols for Coronary Computed Tomography Angiography

scientific article published on 01 January 2019

Breast dose reduction for chest CT by modifying the scanning parameters based on the pre-scan size-specific dose estimate (SSDE).

scientific article published on 7 October 2016

CT Angiography in Patients with Peripheral Arterial Disease: Effect of Small Focal Spot Imaging and Iterative Model Reconstruction on the Image Quality.

scientific article published on 15 June 2016

CT Angiography of Suspected Peripheral Artery Disease: Comparison of Contrast Enhancement in the Lower Extremities of Patients Undergoing and Those Not Undergoing Hemodialysis

scientific article published on 8 February 2017

CT portography by multidetector helical CT: comparison of three rendering models.

scientific article published in November 2002

CT texture analysis for the prediction of KRAS mutation status in colorectal cancer via a machine learning approach

scientific article published on 02 July 2019

CT venography after knee replacement surgery: comparison of dual-energy CT-based monochromatic imaging and single-energy metal artifact reduction techniques on a 320-row CT scanner

scientific article published on February 2017

Clinical impact of model-based type iterative reconstruction with fast reconstruction time on image quality of low-dose screening chest CT.

scientific article published on 27 March 2015

Clinical potential of retrospective on-demand spectral analysis using dual-layer spectral detector-computed tomography in ischemia complicating small-bowel obstruction.

scientific article

Combination of a Low-Tube-Voltage Technique With Hybrid Iterative Reconstruction (iDose) Algorithm at Coronary Computed Tomographic Angiography ⬇️

scientific article published on July 1, 2011

Comparison between multi-shot gradient echo EPI and balanced SSFP in unenhanced 3T MRA of thoracic aorta in healthy volunteers

scientific article published on 21 September 2017

Comparison of standard- and low-tube voltage MDCT angiography in patients with peripheral arterial disease

scientific article published on 23 June 2010

Cone-beam technique for 64-MDCT of lung: image quality comparison with stepwise (step-and-shoot) technique.

scientific article

Contrast Enhancement Boost Technique at Aortic Computed Tomography Angiography: Added Value for the Evaluation of Type II Endoleaks After Endovascular Aortic Aneurysm Repair

scientific article published on 30 January 2019

Contrast enhancement in abdominal computed tomography: influence of photon energy of different scanners.

scientific article published on 27 October 2017

Contrast enhancement on 100- and 120 kVp hepatic CT scans at thin adults in a retrospective cohort study: Bayesian inference of the optimal enhancement probability

scientific article published on 01 November 2019

Coronary Artery Calcium Scoring on Different 64-detector Scanners Using a Low-tube Voltage (80 kVp) ⬇️

scientific article published on August 25, 2012

Coronary artery stent evaluation by combining iterative reconstruction and high-resolution kernel at coronary CT angiography

scientific article published on 28 August 2012

Decreasing the radiation dose for contrast-enhanced abdominal spectral CT with a half contrast dose: a matched-pair comparison with a 120 kVp protocol

scientific article published on 11 December 2020

Delivering the Saline Chaser Via a Spiral Flow-Generating Tube Improves Arterial Enhancement for Computed Tomography Angiography of the Lower Extremities

scientific article published on 01 November 2015

Detection of early enhancement of hypervascular hepatocellular carcinoma using single breath-hold 3D pixel shift dynamic subtraction MDCT.

scientific article

Detection of nodules showing ground-glass opacity in the lungs at low-dose multidetector computed tomography: phantom and clinical study

scientific article published in January 2009

Development and Validation of Generalized Linear Regression Models to Predict Vessel Enhancement on Coronary CT Angiography

article

Digital cine angiography permits radiation dose reduction without reduction in image quality

scientific article published on May 2005

Does the Tube Voltage Affect the Characterization of Coronary Plaques on 100- and 120-kVp Computed Tomography Scans

scientific article published on 01 May 2019

Dose profiles for lung and breast regions at prospective and retrospective CT coronary angiography using optically stimulated luminescence dosimeters on a 64-detector CT scanner

scientific article published on 25 February 2011

Dual-Energy CT of Material Decomposition Analysis for Detection with Bone Marrow Edema in Patients with Vertebral Compression Fractures

scientific article published on 13 March 2019

Dual-energy computed tomography colonography using dual-layer spectral detector computed tomography: Utility of virtual monochromatic imaging for electronic cleansing

scientific article published on 12 September 2018

Dual-layer DECT for multiphasic hepatic CT with 50 percent iodine load: a matched-pair comparison with a 120 kVp protocol

scientific article published on 23 October 2017

Dual-region-of-interest bolus-tracking technique for coronary computed tomographic angiography on a 320-row scanner: reduction in the interpatient variability of arterial contrast enhancement.

scientific article published on 26 October 2017

Dynamic computed tomography of locally advanced pancreatic cancer: effect of low tube voltage and a hybrid iterative reconstruction algorithm on image quality

scientific article published in September 2013

Effect of Patient Characteristics on Vessel Enhancement at Lower Extremity CT Angiography.

scientific article

Effect of Patient Characteristics on Vessel Enhancement in Pediatric Chest Computed Tomography Angiography

scientific article published on 29 December 2018

Effect of contrast injection protocols with dose adjusted to the estimated lean patient body weight on aortic enhancement at CT angiography

scientific article published in April 2009

Effect of iterative reconstruction on variability and reproducibility of epicardial fat volume quantification by cardiac CT.

scientific article published on 3 November 2015

Effects of dual-energy subtraction chest radiography on detection of small pulmonary nodules with varying attenuation: receiver operating characteristic analysis using a phantom study.

scientific article published in April 2010

Evaluation of appropriateness of second-generation 320-row computed tomography for coronary artery disease

scientific article published on 5 March 2015

Evaluation of deep vein thrombosis with reduced radiation and contrast material dose at computed tomography venography: clinical application of a combined iterative reconstruction and low-tube-voltage technique

scientific article published on 11 July 2012

Evaluation of the Effect of Intracoronary Attenuation on Coronary Plaque Measurements Using a Dual-phase Coronary CT Angiography Technique on a 320-row CT Scanner--In Vivo Validation Study

scientific article

Hepatocellular carcinoma in patients weighing 70 kg or less: initial trial of compact-bolus dynamic CT with low-dose contrast material at 80 kVp

scientific article published on 01 June 2011

Hypervascular hepatocellular carcinomas: bolus tracking with a 40-detector CT scanner to time arterial phase imaging

scientific article published on 28 February 2007

Identification and characterization of focal ground-glass opacity in the lungs by high-resolution CT using thin-section multidetector helical CT: experimental study using a chest CT phantom

scientific article published on 31 January 2008

Image noise and radiation dose using an automatic tube current modulation technique at 64-detector computed tomography: effect of off-center patient position, bowtie filter type, and scan projection radiograph.

scientific article published in November 2009

Image quality assessment of an iterative reconstruction algorithm applied to abdominal CT imaging

scientific article published on 21 March 2014

Image quality characteristics for virtual monoenergetic images using dual-layer spectral detector CT: Comparison with conventional tube-voltage images

scientific article published on 17 April 2018

Improved Estimation of Coronary Plaque and Luminal Attenuation Using a Vendor-specific Model-based Iterative Reconstruction Algorithm in Contrast-enhanced CT Coronary Angiography

scientific article published on 7 April 2017

Improved coronary in-stent visualization using a combined high-resolution kernel and a hybrid iterative reconstruction technique at 256-slice cardiac CT-Pilot study

scientific article published on 6 December 2012

Improvement of low-contrast detectability in low-dose hepatic multidetector computed tomography using a novel adaptive filter: evaluation with a computer-simulated liver including tumors

scientific article published in January 2006

Improving Low-contrast Detectability and Noise Texture Pattern for Computed Tomography Using Iterative Reconstruction Accelerated with Machine Learning Method: A Phantom Study

scientific article published on 30 September 2019

Influence on Head Computed Tomography Image by Difference of Beam Hardening Correction Method

scientific article published in January 2017

Iterative Reconstruction Designed for Brain CT: A Correlative Study With Filtered Back Projection for the Diagnosis of Acute Ischemic Stroke

scientific article published on 26 April 2017

Low Contrast Agent and Radiation Dose Protocol for Hepatic Dynamic CT of Thin Adults at 256–Detector Row CT: Effect of Low Tube Voltage and Hybrid Iterative Reconstruction Algorithm on Image Quality ⬇️

scientific article published on May 24, 2012

Low contrast and radiation dose coronary CT angiography using a 320-row system and a refined contrast injection and timing method

scientific article published on 24 December 2014

Low contrast material dose coronary computed tomographic angiography using a dual-layer spectral detector system in patients at risk for contrast-induced nephropathy

scientific article published on 14 November 2018

Low-Kilovoltage, High-Tube-Current MDCT of Liver in Thin Adults: Pilot Study Evaluating Radiation Dose, Image Quality, and Display Settings ⬇️

scientific article published on 01 June 2011

Low-dose CT and Image Quality

scientific article published on January 1, 2011

Low-dose MDCT urography: feasibility study of low-tube-voltage technique and adaptive noise reduction filter

scientific article published in September 2009

Low-tube-voltage selection for non-contrast-enhanced CT: Comparison of the radiation dose in pediatric and adult phantoms

scientific article published on 28 December 2015

Lower tube voltage reduces contrast material and radiation doses on 16-MDCT aortography

scientific article published on 01 November 2006

Machine-learning integration of CT histogram analysis to evaluate the composition of atherosclerotic plaques: Validation with IB-IVUS

scientific article published on 21 October 2018

Metal artifact reduction using iterative CBCT reconstruction algorithm for head and neck radiation therapy: A phantom and clinical study

scientific article published on 21 September 2020

Model-based Iterative Reconstruction in Low-radiation-dose Computed Tomography Colonography: Preoperative Assessment in Patients with Colorectal Cancer.

scientific article published on 27 November 2017

Myocardial Extracellular Volume Quantification Using Cardiac Computed Tomography: A Comparison of the Dual-energy Iodine Method and the Standard Subtraction Method

scientific article published on 10 May 2020

Myocardial extracellular volume quantification in cardiac CT: comparison of the effects of two different iterative reconstruction algorithms with MRI as a reference standard

scientific article published on 30 August 2019

Noninvasive flow evaluations of coronary artery bypass grafting using dynamic cardiac CT

scientific article published on 01 November 2020

Optimal Setting of Automatic Exposure Control Based on Image Noise and Contrast on Iodine-enhanced CT ⬇️

scientific article published on 04 January 2012

Optimal contrast dose for depiction of hypervascular hepatocellular carcinoma at dynamic CT using 64-MDCT.

scientific article

Optimal dose and injection duration (injection rate) of contrast material for depiction of hypervascular hepatocellular carcinomas by multidetector CT

scientific article published on 27 July 2007

Optimal scan timing for artery-vein separation at whole-brain CT angiography using a 320-row MDCT volume scanner.

scientific article published on 20 December 2016

Optimized subtraction coronary CT angiography protocol for clinical use with short breath-holding time-initial experience

scientific article

Optimizing radiation dose by varying age at pediatric temporal bone CT.

scientific article published on 8 January 2015

Paradoxical Effect of Cardiac Output on Arterial Enhancement at Computed Tomography: Does Cardiac Output Reduction Simply Result in an Increase in Aortic Peak Enhancement?

scientific article published on 2 May 2017

Patient-specific tube-voltage selection at coronary CT angiography based on the combination of X-ray attenuation on scout views and body mass index: how can appropriate radiation dose be achieved?

scientific article published on 29 September 2014

Performance of radiologists in detection of small pulmonary nodules on chest radiographs: effect of rib suppression with a massive-training artificial neural network

scientific article

Prediction of Aortic Contrast Enhancement on Dynamic Hepatic Computed Tomography—Performance Comparison of Machine Learning Methods and Simulation Software

scientific article published on 16 March 2022

Prediction of aortic enhancement on coronary CTA images using a test bolus of diluted contrast material

scientific article published on 01 November 2014

Prediction of aortic peak enhancement in monophasic contrast injection protocols at multidetector CT: phantom and patient studies

scientific article published on 25 January 2007

Pulmonary nodules: estimation of malignancy at thin-section helical CT--effect of computer-aided diagnosis on performance of radiologists

scientific article

Quantitative Evaluation of Calcium (content) in the Coronary Artery Using Hybrid Iterative Reconstruction (iDose) Algorithm on Low-dose 64-Detector CT: Comparison of iDose and Filtered Back Projection ⬇️

scientific article published on January 1, 2011

Quantitative measurement of iodine concentration in the liver using abdominal C-arm computed tomography

scientific article published in February 2009

Radiation Dose Reduction With a Low-Tube Voltage Technique for Pediatric Chest Computed Tomographic Angiography Based on the Contrast-to-Noise Ratio Index

scientific article published on 22 September 2018

Radiation Dose Reduction at Low Tube Voltage CCTA Based on the CNR Index

scientific article published on 26 March 2018

Radiation Dose Reduction at Pediatric CT: Use of Low Tube Voltage and Iterative Reconstruction

scientific article published on 01 September 2018

Radiation Dose Reduction at Pediatric CT: Use of Low Tube Voltage and Iterative Reconstruction-Erratum

scientific article published on 01 May 2019

Radiation Reduction and Image Quality Improvement with Iterative Reconstruction at Multidetector-row Computed Tomography ⬇️

scientific article published on 01 January 2011

Radiation dose reduction at MDCT with iterative reconstruction for prenatal diagnosis of skeletal dysplasia: preliminary study using normal fetal specimens

scientific article published in December 2014

Radiation dose reduction based on CNR index with low-tube voltage scan for pediatric CT scan: experimental study using anthropomorphic phantoms

scientific article published on December 2016

Radiation dose reduction in hepatic multidetector computed tomography with a novel adaptive noise reduction filter

scientific article

Radiation dose reduction without degradation of low-contrast detectability at abdominal multisection CT with a low-tube voltage technique: phantom study

scientific article

Radiation exposure of operator performing interventional procedures using a flat panel angiography system: evaluation with photoluminescence glass dosimeters

scientific article published on 27 July 2010

Reducing the Radiation Dose for CT Colonography: Effect of Low Tube Voltage and Iterative Reconstruction

scientific article published on 11 April 2015

Reduction of Radiation Exposure and Image Quality Using Dose Reduction Tool on Computed Tomography Fluoroscopy ⬇️

scientific article published on January 1, 2012

Reduction of metallic coil artefacts in computed tomography body imaging: effects of a new single-energy metal artefact reduction algorithm

scientific article

Reduction of radiation dose at HRCT of the temporal bone in children.

scientific article published in December 2005

Reduction of the unnecessary dose from the over-range area with a spiral dynamic z-collimator: comparison of beam pitch and detector coverage with 128-detector row CT.

scientific article

Relationship between the radiation doses at nonenhanced CT studies using different tube voltages and automatic tube current modulation during anthropomorphic phantoms of young children

scientific article

Report on the 90th Scientific Assembly and Annual Meeting of the Radiological Society of North America-- Presence of a novel adaptive filter improves the diagnostic value of low-dose hepatic CT: evaluation using a virtual liver phantom

scientific article published in July 2005

Simulation of aortic peak enhancement on MDCT using a contrast material flow phantom: feasibility study

scientific article published in February 2006

Simultaneous achievement of accurate CT number and image quality improvement for myocardial perfusion CT at 320-MDCT volume scanning.

scientific article

Single-Breath-Hold Whole-heart Unenhanced Coronary MRA Using Multi-shot Gradient Echo EPI at 3T: Comparison with Free-breathing Turbo-field-echo Coronary MRA on Healthy Volunteers

scientific article

The Influence of DSA Examinations on Patient-absorbed Doses

scientific article published on 01 January 2000

The Influence of Iterative Reconstruction on Coronary Artery Calcium Scoring-Phantom and Clinical Studies

scientific article published on 29 November 2016

The effect of heart rate on coronary plaque measurements in 320-row coronary CT angiography

scientific article published on 20 July 2018

Three-dimensional computed tomographic angiography of the liver for planning hepatic surgery: effect of low tube voltage and the iterative reconstruction algorithm on image quality

scientific article published in January 2014

Tradeoff between noise reduction and inartificial visualization in a model-based iterative reconstruction algorithm on coronary computed tomography angiography.

scientific article

Transluminal attenuation-gradient coronary CT angiography on a 320-MDCT volume scanner: Effect of scan timing, coronary artery stenosis, and cardiac output using a contrast medium flow phantom

scientific article published on 22 October 2016

Uniform vascular enhancement of lower-extremity artery on CT angiography using test-injection monitoring at the central level of the scan range: a simulation flow phantom study with clinical correlation

scientific article published on June 2010

Usefulness of diluted contrast medium for test-scanning of infants scheduled for contrast-enhanced cardiovascular computed tomography angiography

scientific article published on 14 November 2018

Using 80 kVp on a 320-row scanner for hepatic multiphasic CT reduces the contrast dose by 50 % in patients at risk for contrast-induced nephropathy.

scientific article published on 30 May 2016

Validity of the size-specific dose estimate in adults undergoing coronary CT angiography: comparison with the volume CT dose index

scientific article published on 06 October 2015

Value of knowledge-based iterative model reconstruction in low-kV 256-slice coronary CT angiography

scientific article published on 12 January 2014

Vectors through a cross-sectional image (VCI): A visualization method for four-dimensional motion analysis for cardiac computed tomography.

scientific article

[1. Basic Characteristics of Tube Voltages in X- ray CT Scanner]

scientific article published on 01 January 2020

[Combinations of scan parameters and image quality at C-arm CT for abdominal imaging]

scientific article published on 01 June 2009

[Effects of differences in head holder on image quality and radiation dose in head CT]

scientific article published on 01 October 2014

[Influence of maximum tube current threshold in automatic exposure control at 64-detector row CT: relationship between radiation dose reduction rate and variability of image noise].

scientific article

[Inspection of dose reduction in patients during percutaneous coronary intervention and catheter ablation procedures].

scientific article published in January 2012

[New Potential Method for Optimizing the ATCM Technique in Pediatric CT Examination]

scientific article published on 01 January 2020

[Usefulness of Fenestrated Catheters for i.v. Contrast Infusion Cardiac CT Angiography for Newborn Patients during the Congenital Heart Disease]

scientific article published on 01 January 2019

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