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Items: 1 to 50 of 101

1.

EXTraction of EMR numerical data: an efficient and generalizable tool to EXTEND clinical research.

Cai T, Zhang L, Yang N, Kumamaru KK, Rybicki FJ, Cai T, Liao KP.

BMC Med Inform Decis Mak. 2019 Nov 15;19(1):226. doi: 10.1186/s12911-019-0970-1.

2.

MR g-ratio-weighted connectome analysis in patients with multiple sclerosis.

Kamagata K, Zalesky A, Yokoyama K, Andica C, Hagiwara A, Shimoji K, Kumamaru KK, Takemura MY, Hoshino Y, Kamiya K, Hori M, Pantelis C, Hattori N, Aoki S.

Sci Rep. 2019 Sep 18;9(1):13522. doi: 10.1038/s41598-019-50025-2.

3.

Three-dimensional high-resolution simultaneous quantitative mapping of the whole brain with 3D-QALAS: An accuracy and repeatability study.

Fujita S, Hagiwara A, Hori M, Warntjes M, Kamagata K, Fukunaga I, Andica C, Maekawa T, Irie R, Takemura MY, Kumamaru KK, Wada A, Suzuki M, Ozaki Y, Abe O, Aoki S.

Magn Reson Imaging. 2019 Nov;63:235-243. doi: 10.1016/j.mri.2019.08.031. Epub 2019 Aug 21.

4.

Adjustment of CT-fractional flow reserve based on fluid-structure interaction underestimation to minimize 1-year cardiac events.

Kato E, Fujimoto S, Kumamaru KK, Kawaguchi YO, Dohi T, Aoshima C, Kamo Y, Takamura K, Kato Y, Hiki M, Okai I, Okazaki S, Aoki S, Daida H.

Heart Vessels. 2019 Aug 7. doi: 10.1007/s00380-019-01480-4. [Epub ahead of print]

PMID:
31392411
5.

Free-Water Imaging in White and Gray Matter in Parkinson's Disease.

Andica C, Kamagata K, Hatano T, Saito A, Uchida W, Ogawa T, Takeshige-Amano H, Zalesky A, Wada A, Suzuki M, Hagiwara A, Irie R, Hori M, Kumamaru KK, Oyama G, Shimo Y, Umemura A, Pantelis C, Hattori N, Aoki S.

Cells. 2019 Aug 5;8(8). pii: E839. doi: 10.3390/cells8080839.

6.

Comparison of magnetization transfer contrast of conventional and simultaneous multislice turbo spin echo acquisitions focusing on excitation time interval.

Murata S, Tachibana Y, Murata K, Kamagata K, Hori M, Andica C, Suzuki M, Wada A, Kumamaru K, Hagiwara A, Irie R, Sato S, Hamasaki N, Fukunaga I, Hoshito H, Aoki S.

Jpn J Radiol. 2019 Aug;37(8):579-589. doi: 10.1007/s11604-019-00848-w. Epub 2019 Jun 22.

PMID:
31230186
7.

Diagnostic accuracy of 3D deep-learning-based fully automated estimation of patient-level minimum fractional flow reserve from coronary computed tomography angiography.

Kumamaru KK, Fujimoto S, Otsuka Y, Kawasaki T, Kawaguchi Y, Kato E, Takamura K, Aoshima C, Kamo Y, Kogure Y, Inage H, Daida H, Aoki S.

Eur Heart J Cardiovasc Imaging. 2019 Jun 23. pii: jez160. doi: 10.1093/ehjci/jez160. [Epub ahead of print]

PMID:
31230076
8.

White matter alterations in adult with autism spectrum disorder evaluated using diffusion kurtosis imaging.

Hattori A, Kamagata K, Kirino E, Andica C, Tanaka S, Hagiwara A, Fujita S, Maekawa T, Irie R, Kumamaru KK, Suzuki M, Wada A, Hori M, Aoki S.

Neuroradiology. 2019 Dec;61(12):1343-1353. doi: 10.1007/s00234-019-02238-5. Epub 2019 Jun 18.

PMID:
31209529
9.

The predictive factors affecting false positive in on-site operated CT-fractional flow reserve based on fluid and structural interaction.

Kawaguchi YO, Fujimoto S, Kumamaru KK, Kato E, Dohi T, Takamura K, Aoshima C, Kamo Y, Kato Y, Hiki M, Okai I, Okazaki S, Aoki S, Daida H.

Int J Cardiol Heart Vasc. 2019 May 11;23:100372. doi: 10.1016/j.ijcha.2019.100372. eCollection 2019 Jun.

10.

Large hospital variation in the utilization of Post-procedural CT to detect pulmonary embolism/Deep Vein Thrombosis in Patients Undergoing Total Knee or Hip Replacement Surgery: Japanese Nationwide Diagnosis Procedure Combination Database Study.

Kumamaru KK, Kumamaru H, Yasunaga H, Matsui H, Omiya T, Hori M, Suzuki M, Wada A, Kamagata K, Takamura T, Irie R, Nakanishi A, Aoki S.

Br J Radiol. 2019 May;92(1097):20180825. doi: 10.1259/bjr.20180825. Epub 2019 Mar 15.

PMID:
30835500
11.

Differentiating Alzheimer's Disease from Dementia with Lewy Bodies Using a Deep Learning Technique Based on Structural Brain Connectivity.

Wada A, Tsuruta K, Irie R, Kamagata K, Maekawa T, Fujita S, Koshino S, Kumamaru K, Suzuki M, Nakanishi A, Hori M, Aoki S.

Magn Reson Med Sci. 2019 Jul 16;18(3):219-224. doi: 10.2463/mrms.mp.2018-0091. Epub 2018 Dec 3.

12.

Data for comparison of computed tomography angiography and dynamic myocardial perfusion to detect significant stenosis by coronary angiography.

Tomizawa N, Chou S, Fujino Y, Kamitani M, Yamamoto K, Inoh S, Nojo T, Kumamaru KK, Aoki S, Nakamura S.

Data Brief. 2018 Oct 26;21:953-955. doi: 10.1016/j.dib.2018.10.109. eCollection 2018 Dec.

13.

To investigate dose reduction and comparability of standard dose CT vs Ultra low dose CT in evaluating pulmonary emphysema.

O'Brien C, Kok HK, Kelly B, Kumamaru K, Sahadevan A, Lane S, Buckley O.

Clin Imaging. 2019 Jan - Feb;53:115-119. doi: 10.1016/j.clinimag.2018.10.012. Epub 2018 Oct 14.

PMID:
30340073
14.

Feasibility of dynamic myocardial CT perfusion using single-source 64-row CT.

Tomizawa N, Chou S, Fujino Y, Kamitani M, Yamamoto K, Inoh S, Nojo T, Kumamaru KK, Aoki S, Nakamura S.

J Cardiovasc Comput Tomogr. 2019 Jan - Feb;13(1):55-61. doi: 10.1016/j.jcct.2018.10.003. Epub 2018 Oct 6.

PMID:
30309765
15.

Linearity, Bias, Intrascanner Repeatability, and Interscanner Reproducibility of Quantitative Multidynamic Multiecho Sequence for Rapid Simultaneous Relaxometry at 3 T: A Validation Study With a Standardized Phantom and Healthy Controls.

Hagiwara A, Hori M, Cohen-Adad J, Nakazawa M, Suzuki Y, Kasahara A, Horita M, Haruyama T, Andica C, Maekawa T, Kamagata K, Kumamaru KK, Abe O, Aoki S.

Invest Radiol. 2019 Jan;54(1):39-47. doi: 10.1097/RLI.0000000000000510.

PMID:
30300164
16.

Diagnostic performance of on-site computed CT-fractional flow reserve based on fluid structure interactions: comparison with invasive fractional flow reserve and instantaneous wave-free ratio.

Fujimoto S, Kawasaki T, Kumamaru KK, Kawaguchi Y, Dohi T, Okonogi T, Ri K, Yamada S, Takamura K, Kato E, Kato Y, Hiki M, Okazaki S, Aoki S, Mitsouras D, Rybicki FJ, Daida H.

Eur Heart J Cardiovasc Imaging. 2019 Mar 1;20(3):343-352. doi: 10.1093/ehjci/jey104.

PMID:
30107511
17.

Myelin Measurement: Comparison Between Simultaneous Tissue Relaxometry, Magnetization Transfer Saturation Index, and T1w/T2w Ratio Methods.

Hagiwara A, Hori M, Kamagata K, Warntjes M, Matsuyoshi D, Nakazawa M, Ueda R, Andica C, Koshino S, Maekawa T, Irie R, Takamura T, Kumamaru KK, Abe O, Aoki S.

Sci Rep. 2018 Jul 12;8(1):10554. doi: 10.1038/s41598-018-28852-6.

18.

The usefulness of low radiation dose subtraction coronary computed tomography angiography for patients with calcification using 320-row area detector CT.

Takamura K, Fujimoto S, Kawaguchi Y, Kato E, Aoshima C, Hiki M, Kumamaru KK, Daida H.

J Cardiol. 2019 Jan;73(1):58-64. doi: 10.1016/j.jjcc.2018.05.015. Epub 2018 Jun 22.

PMID:
29937106
19.

Correction to: Global and Japanese regional variations in radiologist potential workload for computed tomography and magnetic resonance imaging examinations.

Kumamaru KK, Machitori A, Koba R, Ijichi S, Nakajima Y, Aoki S.

Jpn J Radiol. 2018 Apr;36(4):282-284. doi: 10.1007/s11604-018-0730-7.

PMID:
29603060
20.

The transluminal attenuation gradient in coronary CT angiography for the detection of hemodynamically significant disease: can all arteries be treated equally?

Fujimoto S, Giannopoulos AA, Kumamaru KK, Matsumori R, Tang A, Kato E, Kawaguchi Y, Takamura K, Miyauchi K, Daida H, Rybicki FJ, Mitsouras D.

Br J Radiol. 2018 Jul;91(1087):20180043. doi: 10.1259/bjr.20180043. Epub 2018 Apr 12.

21.

Application of Quantitative Microstructural MR Imaging with Atlas-based Analysis for the Spinal Cord in Cervical Spondylotic Myelopathy.

Hori M, Hagiwara A, Fukunaga I, Ueda R, Kamiya K, Suzuki Y, Liu W, Murata K, Takamura T, Hamasaki N, Irie R, Kamagata K, Kumamaru KK, Suzuki M, Aoki S.

Sci Rep. 2018 Mar 26;8(1):5213. doi: 10.1038/s41598-018-23527-8.

22.

Neurite orientation dispersion and density imaging of the nigrostriatal pathway in Parkinson's disease: Retrograde degeneration observed by tract-profile analysis.

Andica C, Kamagata K, Hatano T, Okuzumi A, Saito A, Nakazawa M, Ueda R, Motoi Y, Kamiya K, Suzuki M, Hori M, Kumamaru KK, Hattori N, Aoki S.

Parkinsonism Relat Disord. 2018 Jun;51:55-60. doi: 10.1016/j.parkreldis.2018.02.046. Epub 2018 Feb 28.

23.

Global and Japanese regional variations in radiologist potential workload for computed tomography and magnetic resonance imaging examinations.

Kumamaru KK, Machitori A, Koba R, Ijichi S, Nakajima Y, Aoki S.

Jpn J Radiol. 2018 Apr;36(4):273-281. doi: 10.1007/s11604-018-0724-5. Epub 2018 Feb 16. Erratum in: Jpn J Radiol. 2018 Mar 30;:.

PMID:
29453512
24.

Connectome analysis with diffusion MRI in idiopathic Parkinson's disease: Evaluation using multi-shell, multi-tissue, constrained spherical deconvolution.

Kamagata K, Zalesky A, Hatano T, Di Biase MA, El Samad O, Saiki S, Shimoji K, Kumamaru KK, Kamiya K, Hori M, Hattori N, Aoki S, Pantelis C.

Neuroimage Clin. 2017 Nov 10;17:518-529. doi: 10.1016/j.nicl.2017.11.007. eCollection 2018.

25.

[The Effect of Reconstruction Method on the Ability to Analyze of FFR Using CT].

Inage H, Kogure Y, Kumamaru K, Fujimoto S, Takamura K, Kawaguchi Y, Han Ni H, Hoshito H.

Nihon Hoshasen Gijutsu Gakkai Zasshi. 2017;73(11):1140-1146. doi: 10.6009/jjrt.2017_JSRT_73.11.1140. Japanese.

26.

Clinical significance of transluminal attenuation gradient in 320-row area detector coronary CT angiography.

Kato E, Fujimoto S, Takamura K, Kawaguchi Y, Aoshima C, Hiki M, Kumamaru KK, Daida H.

Heart Vessels. 2018 May;33(5):462-469. doi: 10.1007/s00380-017-1081-5. Epub 2017 Nov 13.

PMID:
29134268
27.

Automated brain tissue and myelin volumetry based on quantitative MR imaging with various in-plane resolutions.

Andica C, Hagiwara A, Hori M, Nakazawa M, Goto M, Koshino S, Kamagata K, Kumamaru KK, Aoki S.

J Neuroradiol. 2018 May;45(3):164-168. doi: 10.1016/j.neurad.2017.10.002. Epub 2017 Nov 11.

28.

Slice-accelerated gradient-echo echo planar imaging dynamic susceptibility contrast-enhanced MRI with blipped CAIPI: effect of increasing temporal resolution.

Takamura T, Hori M, Kamagata K, Kumamaru KK, Irie R, Hagiwara A, Hamasaki N, Aoki S.

Jpn J Radiol. 2018 Jan;36(1):40-50. doi: 10.1007/s11604-017-0695-y. Epub 2017 Oct 31.

PMID:
29086345
29.

Radiologist involvement is associated with reduced use of MRI in the acute period of low back pain in a non-elderly population.

Kumamaru KK, Sano Y, Kumamaru H, Hori M, Takamura T, Irie R, Suzuki M, Hagiwara A, Kamagata K, Nakanishi A, Aoki S.

Eur Radiol. 2018 Apr;28(4):1600-1608. doi: 10.1007/s00330-017-5086-3. Epub 2017 Oct 23.

PMID:
29063252
30.

Noninvasive Computed Tomography-Derived Fractional Flow Reserve Based on Structural and Fluid Analysis: Reproducibility of On-site Determination by Unexperienced Observers.

Ri K, Kumamaru KK, Fujimoto S, Kawaguchi Y, Dohi T, Yamada S, Takamura K, Kogure Y, Yamada N, Kato E, Irie R, Takamura T, Suzuki M, Hori M, Aoki S, Daida H.

J Comput Assist Tomogr. 2018 Mar/Apr;42(2):256-262. doi: 10.1097/RCT.0000000000000679.

PMID:
28937495
31.

Appropriate imaging utilization in Japan: a survey of accredited radiology training hospitals.

Kumamaru KK, Murayama S, Yamashita Y, Nojo T, Watanabe Y, Goto M, Maeda E, Echigo J, Soga S, Fujii S, Tanami Y, Okabe T, Okada M, Munechika J, Ota H, Miyake M, Honda H, Aoki S.

Jpn J Radiol. 2017 Nov;35(11):648-654. doi: 10.1007/s11604-017-0677-0. Epub 2017 Sep 15.

PMID:
28916887
32.

Submillisievert imaging protocol using full reconstruction and advanced patient motion correction in 320-row area detector coronary CT angiography.

Kawaguchi Y, Fujimoto S, Takamura K, Kato E, Suda S, Matsumori R, Hiki M, Kumamaru KK, Daida H.

Int J Cardiovasc Imaging. 2018 Mar;34(3):465-474. doi: 10.1007/s10554-017-1237-5. Epub 2017 Sep 12.

PMID:
28900781
33.

Diagnostic performance of a Lattice Boltzmann-based method for CT-based fractional flow reserve.

Giannopoulos AA, Tang A, Ge Y, Cheezum MK, Steigner ML, Fujimoto S, Kumamaru KK, Chiappino D, Della Latta D, Berti S, Chiappino S, Rybicki FJ, Melchionna S, Mitsouras D.

EuroIntervention. 2018 Feb 20;13(14):1696-1704. doi: 10.4244/EIJ-D-17-00019.

34.

Non-Contrast-Enhanced Silent Scan MR Angiography of Intracranial Anterior Circulation Aneurysms Treated with a Low-Profile Visualized Intraluminal Support Device.

Takano N, Suzuki M, Irie R, Yamamoto M, Teranishi K, Yatomi K, Hamasaki N, Kumamaru KK, Hori M, Oishi H, Aoki S.

AJNR Am J Neuroradiol. 2017 Aug;38(8):1610-1616. doi: 10.3174/ajnr.A5223. Epub 2017 May 18.

35.

Erratum to: Diagnostic imaging of dementia with Lewy bodies by susceptibility-weighted imaging of nigrosomes versus striatal dopamine transporter single-photon emission computed tomography: a retrospective observational study.

Kamagata K, Nakatsuka T, Sakakibara R, Tsuyusaki Y, Takamura T, Sato K, Suzuki M, Hori M, Kumamaru KK, Inaoka T, Aoki S, Terada H.

Neuroradiology. 2017 Apr;59(4):425. doi: 10.1007/s00234-017-1814-2. No abstract available.

PMID:
28331948
36.

SyMRI of the Brain: Rapid Quantification of Relaxation Rates and Proton Density, With Synthetic MRI, Automatic Brain Segmentation, and Myelin Measurement.

Hagiwara A, Warntjes M, Hori M, Andica C, Nakazawa M, Kumamaru KK, Abe O, Aoki S.

Invest Radiol. 2017 Oct;52(10):647-657. doi: 10.1097/RLI.0000000000000365. Review.

37.

Diagnostic imaging of dementia with Lewy bodies by susceptibility-weighted imaging of nigrosomes versus striatal dopamine transporter single-photon emission computed tomography: a retrospective observational study.

Kamagata K, Nakatsuka T, Sakakibara R, Tsuyusaki Y, Takamura T, Sato K, Suzuki M, Hori M, Kumamaru KK, Inaoka T, Aoki S, Terada H.

Neuroradiology. 2017 Jan;59(1):89-98. doi: 10.1007/s00234-016-1773-z. Epub 2016 Dec 29. Erratum in: Neuroradiology. 2017 Apr;59(4):425.

PMID:
28035426
38.

Usefulness of Non-Contrast-Enhanced MR Angiography Using a Silent Scan for Follow-Up after Y-Configuration Stent-Assisted Coil Embolization for Basilar Tip Aneurysms.

Takano N, Suzuki M, Irie R, Yamamoto M, Hamasaki N, Kamagata K, Kumamaru KK, Hori M, Oishi H, Aoki S.

AJNR Am J Neuroradiol. 2017 Mar;38(3):577-581. doi: 10.3174/ajnr.A5033. Epub 2016 Dec 22.

39.

Synthetic MR Imaging in the Diagnosis of Bacterial Meningitis.

Andica C, Hagiwara A, Nakazawa M, Kumamaru KK, Hori M, Ikeno M, Shimizu T, Aoki S.

Magn Reson Med Sci. 2017 Apr 10;16(2):91-92. doi: 10.2463/mrms.ci.2016-0082. Epub 2016 Dec 22. No abstract available.

40.

Synthetic MRI in the Detection of Multiple Sclerosis Plaques.

Hagiwara A, Hori M, Yokoyama K, Takemura MY, Andica C, Tabata T, Kamagata K, Suzuki M, Kumamaru KK, Nakazawa M, Takano N, Kawasaki H, Hamasaki N, Kunimatsu A, Aoki S.

AJNR Am J Neuroradiol. 2017 Feb;38(2):257-263. doi: 10.3174/ajnr.A5012. Epub 2016 Dec 8.

41.

Single injection protocol for coronary and lower extremity CT angiographies in patients suspected for peripheral arterial disease.

Khandelwal A, Kondo T, Amanuma M, Oida A, Sano T, Sachin SS, Takase S, Rybicki FJ, Kumamaru KK.

Medicine (Baltimore). 2016 Nov;95(46):e5410.

42.

Utility of a Multiparametric Quantitative MRI Model That Assesses Myelin and Edema for Evaluating Plaques, Periplaque White Matter, and Normal-Appearing White Matter in Patients with Multiple Sclerosis: A Feasibility Study.

Hagiwara A, Hori M, Yokoyama K, Takemura MY, Andica C, Kumamaru KK, Nakazawa M, Takano N, Kawasaki H, Sato S, Hamasaki N, Kunimatsu A, Aoki S.

AJNR Am J Neuroradiol. 2017 Feb;38(2):237-242. doi: 10.3174/ajnr.A4977. Epub 2016 Oct 27.

43.

CT pulmonary angiography-based scoring system to predict the prognosis of acute pulmonary embolism.

Kumamaru KK, Saboo SS, Aghayev A, Cai P, Quesada CG, George E, Hussain Z, Cai T, Rybicki FJ.

J Cardiovasc Comput Tomogr. 2016 Nov - Dec;10(6):473-479. doi: 10.1016/j.jcct.2016.08.007. Epub 2016 Aug 24.

PMID:
27591768
44.

Limited Hospital Variation in the Use and Yield of CT for Pulmonary Embolism in Patients Undergoing Total Hip or Total Knee Replacement Surgery.

Kumamaru KK, Kumamaru H, Bateman BT, Gronsbell J, Cai T, Liu J, Higgins LD, Aoki S, Ohtomo K, Rybicki FJ, Patorno E.

Radiology. 2016 Dec;281(3):826-834. Epub 2016 May 26.

PMID:
27228331
45.

A strategy to optimize radiation exposure for non-contrast head CT: comparison with the Japanese diagnostic reference levels.

Kumamaru KK, Kogure Y, Suzuki M, Hori M, Nakanishi A, Kamagata K, Hagiwara A, Andica C, Ri K, Houshido N, Aoki S.

Jpn J Radiol. 2016 Jun;34(6):451-7. doi: 10.1007/s11604-016-0545-3. Epub 2016 Apr 20.

PMID:
27097808
46.

Normal ventricular diameter ratio on CT provides adequate assessment for critical right ventricular strain among patients with acute pulmonary embolism.

Kumamaru KK, George E, Ghosh N, Quesada CG, Wake N, Gerhard-Herman M, Rybicki FJ.

Int J Cardiovasc Imaging. 2016 Jul;32(7):1153-61. doi: 10.1007/s10554-016-0887-z. Epub 2016 Apr 13.

PMID:
27076224
47.

Contrast-enhanced synthetic MRI for the detection of brain metastases.

Hagiwara A, Hori M, Suzuki M, Andica C, Nakazawa M, Tsuruta K, Takano N, Sato S, Hamasaki N, Yoshida M, Kumamaru KK, Ohtomo K, Aoki S.

Acta Radiol Open. 2016 Feb 15;5(2):2058460115626757. doi: 10.1177/2058460115626757. eCollection 2016 Feb.

48.

Implementation and Performance of Automated Software for Computing Right-to-Left Ventricular Diameter Ratio From Computed Tomography Pulmonary Angiography Images.

Kumamaru KK, George E, Aghayev A, Saboo SS, Khandelwal A, Rodríguez-López S, Cai T, Jiménez-Carretero D, Estépar RS, Ledesma-Carbayo MJ, González G, Rybicki FJ.

J Comput Assist Tomogr. 2016 May-Jun;40(3):387-92. doi: 10.1097/RCT.0000000000000375.

49.

Natural Language Processing Technologies in Radiology Research and Clinical Applications.

Cai T, Giannopoulos AA, Yu S, Kelil T, Ripley B, Kumamaru KK, Rybicki FJ, Mitsouras D.

Radiographics. 2016 Jan-Feb;36(1):176-91. doi: 10.1148/rg.2016150080. Review.

50.

Contrast inhomogeneity in CT angiography of the abdominal aortic aneurysm.

George E, Giannopoulos AA, Aghayev A, Rohatgi S, Imanzadeh A, Antoniadis AP, Kumamaru KK, Chatzizisis YS, Dunne R, Steigner M, Hanley M, Gravereaux EC, Rybicki FJ, Mitsouras D.

J Cardiovasc Comput Tomogr. 2016 Mar-Apr;10(2):179-83. doi: 10.1016/j.jcct.2015.11.006. Epub 2015 Dec 2.

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