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List of works by Toshinori Hirai

13C MR imaging of methionine-rich gliomas at 4.7T: a pilot study

scientific article published in January 2011

3D TOF MRA of intracranial aneurysms at 1.5 T and 3 T: influence of matrix, parallel imaging, and acquisition time on image quality - a vascular phantom study

scientific article

A 3-dimensional computed tomographic procedure for planning retrosigmoid craniotomy

scientific article published on 01 May 2009

A Case of Periodontal Necrosis following Embolization of Maxillary Artery for Epistaxis.

scientific article published on 21 November 2016

A National Survey on Safety Management at MR Imaging Facilities in Japan

scientific article published on 26 November 2020

A positive correlation between fractional white matter volume and the response of Parkinson disease patients to subthalamic stimulation

scientific article

A postmeningitic cochlear implant patient who was postoperatively diagnosed as having X-linked agammaglobulinemia.

scientific article published on 16 February 2012

Added value of high-b-value (b = 3000 s/mm2) diffusion-weighted imaging at 3 T in relation to fluid-attenuated inversion recovery images for the evaluation of cortical lesions in inflammatory brain diseases

scientific article published in May 2013

Additive Value of 3T 3D CISS Imaging to Conventional MRI for Assessing the Abnormal Vessels of Spinal Dural Arteriovenous Fistulae.

scientific article

Additive value of 320-section low-dose dynamic volume CT in relation to 3-T MRI for the preoperative evaluation of brain tumors

scientific article

An asymptomatic intraorbital foreign body for 30 years

scientific article published on 15 November 2012

An in vivo morphometry study on the standard transsylvian trajectory for mesial temporal lobe epilepsy surgery

scientific article

Assessment of cerebral perfusion from bypass arteries using magnetic resonance regional perfusion imaging in patients with moyamoya disease

scientific article

Association of cerebral small vessel disease with delusions in patients with Alzheimer's disease

scientific article published on 7 March 2012

Asymptomatic cystic changes in the brain of children after cranial irradiation: frequency, latency, and relationship to age.

scientific article

Automated computerized scheme for detection of unruptured intracranial aneurysms in three-dimensional magnetic resonance angiography

scientific article published in October 2004

Benefit of 3T Diffusion-weighted Imaging in Comparison to Contrast-enhanced MR Imaging for the Evaluation of Disseminated Lesions in Primary Malignant Brain Tumors

scientific article published on 11 October 2016

Can 3T MR Angiography Replace DSA for the Identification of Arteries Feeding Intracranial Meningiomas? ⬇️

scientific article published on October 18, 2012

Can CT angiography reconstructed from CT perfusion source data on a 320-section volume CT scanner replace conventional CT angiography for the evaluation of intracranial arteries?

scientific article

Can MRI-derived factors predict the survival in glioblastoma patients treated with postoperative chemoradiation therapy?

scientific article

Can sufficient preoperative information of intracranial aneurysms be obtained by using 320-row detector CT angiography alone?

scientific article

Characteristics of Preoperative Visual Disturbance and Visual Outcome After Endoscopic Endonasal Transsphenoidal Surgery for Nonfunctioning Pituitary Adenoma in Elderly Patients

scientific article published on 05 March 2019

Characterization of Carotid Plaque Components by Quantitative Susceptibility Mapping

scientific article published on 26 December 2019

Characterization of adrenal lesions using chemical shift MRI: comparison between 1.5 Tesla and two echo time pair selection at 3.0 Tesla MRI

scientific article published on 14 October 2011

Circumventricular organs of human brain visualized on post-contrast 3D fluid-attenuated inversion recovery imaging

scientific article published on 02 May 2018

Classification of cerebral lymphomas and glioblastomas featuring luminance distribution analysis

scientific article published on 06 June 2013

Clinical quantitative susceptibility mapping (QSM): Biometal imaging and its emerging roles in patient care

scientific article published on 10 March 2017

Clinical usefulness of unsubtracted 3D digital angiography compared with rotational digital angiography in the pretreatment evaluation of intracranial aneurysms.

scientific article published on June 2003

Collateral circulation via the circle of Willis in patients with carotid artery steno-occlusive disease: evaluation on 3-T 4D MRA using arterial spin labelling.

scientific article published on 06 June 2015

Combined stent placement and high dose PGE1 drip infusion for chronic occlusion of the superficial femoral artery as a modality to salvage chronic critical limb ischemia

scientific article published on 6 June 2007

Combined use of T2-weighted and diffusion-weighted 3-T MR imaging for differentiating uterine sarcomas from benign leiomyomas

scientific article published on 06 June 2009

Combining quantitative susceptibility mapping to the morphometric index in differentiating between progressive supranuclear palsy and Parkinson's disease

scientific article published on 31 August 2019

Comparison of 3D FLAIR, 2D FLAIR, and 2D T2-Weighted MR Imaging of Brain Stem Anatomy ⬇️

scientific article published on January 19, 2012

Comparison of 3D phase-sensitive inversion-recovery and 2D inversion-recovery MRI at 3.0 T for the assessment of late gadolinium enhancement in patients with hypertrophic cardiomyopathy

scientific article published on 6 March 2013

Comparison of Different Post-Processing Algorithms for Dynamic Susceptibility Contrast Perfusion Imaging of Cerebral Gliomas

scientific article

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

scientific article published on 23 June 2010

Computer-aided detection of metastatic brain tumors in magnetic resonance images

scientific article published in June 2013

Computerized detection of intracranial aneurysms for three-dimensional MR angiography: feature extraction of small protrusions based on a shape-based difference image technique

scientific article published on 01 February 2006

Conditional unnecessity of head CT for whole-body CT of traffic accident victims: a pilot study

scientific article published on 12 September 2020

Confluent two-balloon technique: an alternative method for subintimal recanalization of peripheral arterial occlusion

scientific article published on 01 August 2011

Contrast material injection protocol with the dose adjusted to the body surface area for MDCT aortography

scientific article published in April 2010

Delayed CSF enhancement associated with Todd's paresis

scientific article published on 21 January 2012

Detection of hemorrhagic hypointense foci in the brain on susceptibility-weighted imaging clinical and phantom studies

scientific article published in September 2007

Diagnosis of dementia with Lewy bodies: diagnostic performance of combined ¹²³I-IMP brain perfusion SPECT and ¹²³I-MIBG myocardial scintigraphy

scientific article published on 21 December 2013

Diagnostic Significance of Cortical Superficial Siderosis for Alzheimer Disease in Patients with Cognitive Impairment

scientific article published on 8 October 2015

Diagnostic accuracy and reading time to detect intracranial aneurysms on MR angiography using a computer-aided diagnosis system

scientific article published on 01 February 2008

Differential Diagnosis between Low-Grade and High-Grade Astrocytoma Using System A Amino Acid Transport PET Imaging with C-11-MeAIB: A Comparison Study with C-11-Methionine PET Imaging

scientific article published on 20 June 2018

Differentiating between Alzheimer Disease Patients and Controls with Phase-difference-enhanced Imaging at 3T: A Feasibility Study

scientific article published on 15 January 2018

Differentiating between Primary Central Nervous System Lymphomas and Glioblastomas: Combined Use of Perfusion- and Diffusion- Weighted Magnetic Resonance Imaging

scientific article published on 2 November 2017

Differentiation between glioblastoma and solitary brain metastasis using neurite orientation dispersion and density imaging

scientific article published on 12 November 2018

Differentiation of common large sellar-suprasellar masses effect of artificial neural network on radiologists' diagnosis performance

scientific article published in March 2009

Diffusion tensor tractography in the head-and-neck region using a clinical 3-T MR scanner

scientific article published on 17 April 2009

Diffusion-weighted imaging in ischemic stroke: effect of display method on observers' diagnostic performance

scientific article published in March 2009

Diffusion-weighted imaging of primary brain lymphomas: effect of ADC value and signal intensity of T2-weighted imaging

scientific article

Diffusion-weighted imaging of radiation-induced brain injury for differentiation from tumor recurrence.

scientific article published in June 2005

Discriminating between silent cerebral infarction and deep white matter hyperintensity using combinations of three types of magnetic resonance images: a multicenter observer performance study

scientific article published on 12 June 2008

Do TSH, FT3, and FT4 Impact BAT Visualization of Clinical FDG-PET/CT Images?

scientific article

Does adding FDG-PET to MRI improve the differentiation between primary cerebral lymphoma and glioblastoma? Observer performance study

scientific article published on 16 March 2011

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

Enhancement effects of hepatic dynamic MR imaging at 3.0 T and 1.5 T using gadoxetic acid in a phantom study: comparison with gadopentetate dimeglumine

scientific article published on 19 January 2011

Evaluating of the Quality of Hepatic Diffusion Weighted Imaging Using Multiband Imaging With Variable-Rate Selective Excitation

scientific article published on 13 July 2022

Evaluation of Intracranial Arteriovenous Malformations With Four-Dimensional Arterial-Spin Labeling-Based 3-T Magnetic Resonance Angiography

scientific article published on 23 November 2015

Evaluation of Intracranial Dural Arteriovenous Fistulas: Comparison of Unenhanced 3T 3D Time-of-flight MR Angiography with Digital Subtraction Angiography

scientific article published on 19 May 2015

Evaluation of Intracranial Vasculatures in Healthy Subjects with Arterial-Spin-Labeling-Based 4D-MR Angiography at 3T.

scientific article published on 22 December 2015

Evaluation of contrast-enhanced MR angiography in the follow-up of visceral arterial aneurysms after coil embolization

scientific article published on 30 April 2013

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 diffusion-weighted imaging for the differential diagnosis of poorly contrast-enhanced and T2-prolonged bone masses: Initial experience

scientific article published on 01 March 2006

Evaluation of pituitary structures and lesions with turbo spin-echo diffusion-weighted imaging

scientific article published on 18 July 2019

Evaluation of small hypothalamic hamartomas with 3D constructive interference in steady state (CISS) sequence

scientific article published on 25 February 2005

Evaluation of vascular supply with angio-computed tomography during intra-arterial chemotherapy for brain tumors

scientific article published on May 2005

Genetic Factors Affecting Intraoperative 5-aminolevulinic Acid-induced Fluorescence of Diffuse Gliomas

scientific article

Grading astrocytic tumors by using apparent diffusion coefficient parameters: superiority of a one- versus two-parameter pilot method

scientific article

Handedness: dependent asymmetrical location of the human primary gustatory area, area G.

scientific article

High Signal Intensity in Arterial Walls on Diffusion-Weighted Magnetic Resonance Imaging in the Active Phase of Takayasu Arteritis.

scientific article published on 13 April 2017

Higher incidence of epilepsy in meningiomas located on the premotor cortex: a voxel-wise statistical analysis

scientific article published on 21 October 2012

Higher lactate and purine metabolite levels in erythrocyte-rich fresh venous thrombus: Potential markers for early deep vein thrombosis

scientific article published on 14 March 2019

Histopathological changes in parotid and submandibular glands of patients treated with preoperative chemoradiation therapy for oral cancer

scientific article published on 09 April 2012

Human cerebral cortices: signal variation on diffusion-weighted MR imaging

scientific article published on 05 December 2007

Human subthalamic nucleus: evaluation with high-resolution MR imaging at 3.0 T

scientific article published on 29 April 2008

Identification of the occipito-pontine tract using diffusion-tensor fiber tracking in adult-onset adrenoleukodystrophy with topographic disorientation

scientific article published on 19 May 2011

Impact of FDG-PET/CT imaging on nodal staging for head-and-neck squamous cell carcinoma

scientific article published on 22 February 2007

Interimager variability in ADC measurement of the human brain

scientific article published on 28 April 2014

Intraarterial infusion chemotherapy for head and neck cancers: evaluation of tumor perfusion with intraarterial CT during carotid arteriography

scientific article

Intracranial aneurysms at MR angiography: effect of computer-aided diagnosis on radiologists' detection performance

scientific article

Intracranial artery dissections: serial evaluation with MR imaging, MR angiography, and source images of MR angiography

scientific article published on 01 March 2003

Intracranial dural arteriovenous fistulas: evaluation with 3-T four-dimensional MR angiography using arterial spin labeling

scientific article

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

Lateral Asymmetry and Spatial Difference of Iron Deposition in the Substantia Nigra of Patients with Parkinson Disease Measured with Quantitative Susceptibility Mapping

scientific article published on 28 January 2016

Longitudinal changes over 2 years in parotid glands of patients treated with preoperative 30-Gy irradiation for oral cancer.

scientific article published on 12 January 2011

Low putamen activity associated with poor reward sensitivity in childhood chronic fatigue syndrome

scientific article published on 26 September 2016

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

scientific article published in September 2009

Low-dose contrast protocol using the test bolus technique for 64-detector computed tomography coronary angiography

scientific article published in August 2011

MR diagnosis of vertebral artery dissection: value of 3D time-of-flight and true fast imaging with steady-state precession fusion imaging

scientific article published on 2 December 2012

Machine learning based on multi-parametric magnetic resonance imaging to differentiate glioblastoma multiforme from primary cerebral nervous system lymphoma

scientific article published on 14 September 2018

Malignant supratentorial astrocytoma treated with postoperative radiation therapy: prognostic value of pretreatment quantitative diffusion-weighted MR imaging

scientific article

Management of aneurysm perforation during Guglielmi electrodetachable coil placement

scientific article published on 01 April 2002

Monitoring therapeutic responses of primary bone tumors by diffusion-weighted image: Initial results

scientific article published on 15 August 2006

Multi-tensor tractography of the motor pathway at 3T: a volunteer study

scientific article published on 01 January 2011

Osmotic release oral system-methylphenidate improves neural activity during low reward processing in children and adolescents with attention-deficit/hyperactivity disorder

scientific article published on 16 March 2013

Outer-diameter narrowing of the internal carotid and middle cerebral arteries in moyamoya disease detected on 3D constructive interference in steady-state MR image: is arterial constrictive remodeling a major pathogenesis?

scientific article published on 31 August 2012

Parkinson's disease: diagnostic potential of high-resolution phase difference enhanced MR imaging at 3 T.

scientific article published on 19 October 2012

Percutaneous aspiration embolectomy of superior mesenteric artery using a 5MAX ACE reperfusion catheter

scientific article published on 02 November 2016

Phase II study of preoperative concurrent chemoradiation therapy with S-1 in patients with T4 oral squamous cell carcinoma.

scientific article published on 21 July 2009

Pineal cystic germinoma with syncytiotrophoblastic giant cells mimicking MR imaging findings of a pineal cyst

scientific article

Pitfalls of 3D FLAIR brain imaging: a prospective comparison with 2D FLAIR.

scientific article

Podoplanin expression on endothelial cells promotes superficial erosive injury and thrombus formation in rat carotid artery: Implications for plaque erosion

scientific article published on 20 October 2019

Positional lumbar imaging using a positional device in a horizontally open-configuration MR unit - initial experience

scientific article published on September 2007

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 Posthepatectomy Liver Failure Proposed by the International Study Group of Liver Surgery: Residual Liver Function Estimation With 99mTc-Galactosyl Human Serum Albumin Scintigraphy

scientific article published on 11 December 2017

Preoperative embolization for meningeal tumors: evaluation of vascular supply with angio-CT.

scientific article published on January 2004

Preoperative maximal removal rate of technetium-99m-galactosyl-human serum albumin of the remnant liver is associated with postoperative tumor relapse in hepatitis C virus-related hepatocellular carcinoma

scientific article published on 2 November 2017

Prospective evaluation of suspected stenoocclusive disease of the intracranial artery: combined MR angiography and CT angiography compared with digital subtraction angiography

scientific article published on January 2002

Pseudostenosis in vessels adjacent to intracranial aneurysms on volume-rendered 3D angiograms: a phantom study

scientific article published on March 2005

Pseudostenosis phenomenon at volume-rendered three-dimensional digital angiography of intracranial arteries: frequency, location, and effect on image evaluation

scientific article published on 29 July 2004

Quantitative evaluation of measurement accuracy for three-dimensional angiography system using various phantoms.

scientific article published on May 2005

Radiation therapy for nasopharyngeal carcinoma: the predictive value of interim survival assessment

scientific article published on 29 May 2016

Radiation-induced parotid gland changes in oral cancer patients: correlation between parotid volume and saliva production

scientific article published on 06 October 2009

Recurrence patterns of glioblastoma treated with postoperative radiation therapy: relationship between extent of resection and progression-free interval

scientific article

Reduction of contrast material volume in 3D angiography of the brain using MDCT.

scientific article published on August 2010

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

scientific article

Retrograde cortical and deep venous drainage in patients with intracranial dural arteriovenous fistulas: comparison of MR imaging and angiographic findings.

scientific article

Risk factors for atrophic gastritis in the Japanese young and middle-aged: a study using double-contrast upper gastrointestinal barium X-ray radiography

scientific article published on 27 September 2018

Role of conventional angiography for the stroke

scientific article published in November 2006

Role of diffusion-weighted imaging in the diagnosis of gynecological diseases

scientific article published on 07 October 2008

Semi-automated segmentation of a glioblastoma multiforme on brain MR images for radiotherapy planning.

scientific article published on April 2010

Short-term experience with aspiration embolectomy using a ACE68 reperfusion catheter to treat embolic superior mesenteric artery occlusion

scientific article published on 08 January 2021

Signal intensity of the normal pontine tegmentum on T2-weighted MR imaging

scientific article published on 4 February 2006

Significance of the preoperative regional maximal removal rate of technetium-99m-galactosyl human serum albumin in the future remnant liver: a sequential study of regional maximal removal rate of technetium-99m-galactosyl human serum albumin in the

scientific article published on 01 February 2019

Simultaneous acquisition of MR angiography and diagnostic images of abdomen at view-sharing multiarterial phases and comparing the effect of two different contrast agents.

scientific article published on 16 December 2017

Spinal MR findings in continuous epidural analgesia without infection.

scientific article published in May 2005

Spinal imaging features in Japanese patients with Marfan syndrome: a case-control study

scientific article published on 30 January 2014

Stabilization of carotid atheroma assessed by quantitative ultrasound analysis in nonhypercholesterolemic patients with coronary artery disease

scientific article published on 4 November 2005

Successful transarterial embolization with cellulose porous beads for occipital haemangioma in an infant with Kasabach-Merritt syndrome

scientific article published on 10 May 2017

T1 Shortening in the Cerebral Cortex after Multiple Administrations of Gadolinium-based Contrast Agents

scientific article published on 11 October 2016

The essence of the Japan Radiological Society/Japanese College of Radiology Imaging Guideline

scientific article

The value of diffusion-weighted imaging for monitoring the chemotherapeutic response of osteosarcoma: a comparison between average apparent diffusion coefficient and minimum apparent diffusion coefficient

scientific article published on 19 November 2009

Therapeutic response of immunoglobulin 4-related aortitis and pancreatitis demonstrated by diffusion-weighted MRI

scientific article published on 16 July 2019

Transthyretin-related familial amyloid polyneuropathy: evaluation of CSF enhancement on serial T1-weighted and fluid-attenuated inversion recovery images following intravenous contrast administration

scientific article

Type 1 perimedullary arteriovenous fistula with subarachnoid hemorrhage: utility of contrast-enhanced 3D gradient-echo technique

scientific article published on 01 January 2011

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 2D fusion of postmortem CT and antemortem chest radiography studies for human identification

scientific article published on 14 March 2017

Usefulness of 3D DSA-MR fusion imaging in the pretreatment evaluation of brain arteriovenous malformations

scientific article published on 28 August 2012

Usefulness of Contrast-Enhanced 3D-FLAIR MR Imaging for Differentiating Rathke Cleft Cyst from Cystic Craniopharyngioma

scientific article published on 19 December 2019

Usefulness of Virtual Monochromatic Images and Iodine Maps Derived from Dual-Energy Computed Tomography for Diagnosing Deep Neck Abscesses

scientific article published on 16 July 2021

Usefulness of diffusion-weighted imaging for differentiating between desmoid tumors and malignant soft tissue tumors

scientific article

Usefulness of diffusion-weighted imaging in the localization of prostate cancer

scientific article published on 18 November 2008

Usefulness of source images from three-dimensional time-of-flight MR angiography after treatment of cavernous dural arteriovenous fistulas.

scientific article published on September 2003

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

scientific article published on 12 January 2014

Virtual Noncontrast Images Derived From Contrast-Enhanced Dual-Layer Spectral Abdominal Computed Tomography: A Pilot Study Between Pediatric and Adult Scans

scientific article published on 11 November 2021

[A computerized method for detection of acute cerebral infarction on CT images]

scientific article published on 01 September 2010

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