Hayakawa Motoharu

  • 1608 Citations
  • 15 h-Index
19962020

Research output per year

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Research Output

  • 1608 Citations
  • 15 h-Index
  • 67 Article
  • 5 Review article
  • 2 Conference contribution
  • 1 Chapter
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Article
2020

A penalized spline fitting method to optimize geometric parameters of arterial centerlines extracted from medical images

Kobayashi, M., Hoshina, K., Nemoto, Y., Takagi, S., Shojima, M., Hayakawa, M., Yamada, S. & Oshima, M., 09-2020, In : Computerized Medical Imaging and Graphics. 84, 101746.

Research output: Contribution to journalArticle

2019

Initial clinical experience of a prototype ultra-high-resolution CT for assessment of small intracranial arteries

Nagata, H., Murayama, K., Suzuki, S., Watanabe, A., Hayakawa, M., Saito, Y., Katada, K. & Toyama, H., 19-04-2019, In : Japanese Journal of Radiology. 37, 4, p. 283-291 9 p.

Research output: Contribution to journalArticle

5 Citations (Scopus)

Susceptibility-Weighted Imaging of Deep Venous Congestion in Petroclival Meningioma

Adachi, K., Hasegawa, M., Hayakawa, M., Tateyama, S. & Hirose, Y., 02-2019, In : World Neurosurgery. 122, p. e20-e31

Research output: Contribution to journalArticle

1 Citation (Scopus)
2018
6 Citations (Scopus)
2 Citations (Scopus)

Preliminary study of time maximum intensity projection computed tomography imaging for the detection of early ischemic change in patient with acute ischemic stroke

Murayama, K., Suzuki, S., Matsukiyo, R., Takenaka, A., Hayakawa, M., Tsutsumi, T., Fujii, K., Katada, K. & Toyama, H., 01-03-2018, In : Medicine (United States). 97, 9, e9906.

Research output: Contribution to journalArticle

3 Citations (Scopus)
1 Citation (Scopus)
2017
2 Citations (Scopus)
1 Citation (Scopus)
2016
6 Citations (Scopus)
3 Citations (Scopus)
4 Citations (Scopus)

Study of Changing Intracranial Venous Drainage Patterns in Petroclival Meningioma

Adachi, K., Hayakawa, M., Ishihara, K., Ganaha, T., Nagahisa, S., Hasegawa, M. & Hirose, Y., 01-08-2016, In : World Neurosurgery. 92, p. 339-348 10 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2015
1 Citation (Scopus)
2 Citations (Scopus)
2014
16 Citations (Scopus)

Functional preservation in surgery for deep-seated meningiomas

Hasegawa, M., Hayashi, T., Nagahisa, S., Adachi, K., Moriya, S., Ganaha, T., Inamasu, J., Hayakawa, M. & Hirose, Y., 01-01-2014, In : Japanese Journal of Neurosurgery. 23, 1, p. 29-36 8 p.

Research output: Contribution to journalArticle

Outcomes of surgical versus endovascular repair of unruptured brain aneurysms in individuals aged ≥75 years

Inamasu, J., Tanaka, T., Sadato, A., Hayakawa, M., Adachi, K., Hayashi, T., Kato, Y. & Hirose, Y., 01-10-2014, In : Geriatrics and Gerontology International. 14, 4, p. 858-863 6 p.

Research output: Contribution to journalArticle

3 Citations (Scopus)
7 Citations (Scopus)
3 Citations (Scopus)
2013

Decompressive hemicraniectomy for malignant hemispheric stroke in the elderly: Comparison of outcomes between individuals 61-70 and >70 years of age

Inamasu, J., Kaito, T., Watabe, T., Ganaha, T., Yamada, Y., Tanaka, T., Imizu, S., Hayashi, T., Hayakawa, M., Kato, Y. & Hirose, Y., 11-2013, In : Journal of Stroke and Cerebrovascular Diseases. 22, 8, p. 1350-1354 5 p.

Research output: Contribution to journalArticle

11 Citations (Scopus)
2012

Tandem balloon test occlusion for a large unruptured aneurysm associated with persistent primitive trigeminal artery: Technical note

Tanaka, T., Sadato, A., Hayakawa, M., Oomura, M., Maeda, S., Adachi, K., Watabe, T., Hiramatsu, H., Imizu, S., Negoro, M. & Hirose, Y., 01-01-2012, In : Journal of Neuroendovascular Therapy. 5, 3, p. 202-207 6 p.

Research output: Contribution to journalArticle

Open Access
28 Citations (Scopus)
2 Citations (Scopus)

Usefulness of 320-row area detector CT in neurosurgery

Hayakawa, M., Murayama, K., Katada, K. & Hirose, Y., 11-2011, In : Japanese Journal of Neurosurgery. 20, 9, p. 640-647 8 p.

Research output: Contribution to journalArticle

1 Citation (Scopus)
2010

Endovascular treatment of vertebral artery dissection using stents and coils: Its pitfall and technical considerations

Sadato, A., Maeda, S., Hayakawa, M., Kato, Y., Sano, H., Hirose, Y., Miyamoto, S. & Hashimoto, N., 01-12-2010, In : Minimally Invasive Neurosurgery. 53, 5-6, p. 243-249 7 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)
2009

Thrombectomy with Soutenir for acute ischemic stroke patients unresponsive to intravenous recombinant tissue plasminogen activator

Oomura, M., Hayakawa, M., Sadato, A., Tanaka, T., Irie, K., Negoro, M., Kato, Y. & Sano, H., 01-01-2009, In : Journal of Neuroendovascular Therapy. 3, 1, p. 10-16 7 p.

Research output: Contribution to journalArticle

Open Access

Whole-brain perfusion CT performed with a prototype 256-detector row CT system: Initial experience

Murayama, K., Katada, K., Nakane, M., Toyama, H., Anno, H., Hayakawa, M., Ruiz, D. S. M. & Murphy, K. J., 01-01-2009, In : Radiology. 250, 1, p. 202-211 10 p.

Research output: Contribution to journalArticle

66 Citations (Scopus)
2008

Usefulness of a simplified management scheme for paraclinoid aneurysms based on a modified classification

Chen, L., Kato, Y., Karagiozov, K. L., Yoneda, M., Imizu, S., Hayakawa, M., Sadato, A., Irie, K., Negoro, M. & Sano, H., 10-2008, In : Cerebrovascular Diseases. 26, 4, p. 388-396 9 p.

Research output: Contribution to journalArticle

10 Citations (Scopus)
2007

Extracranial vertebral artery aneurysm associated with neurofibromatosis type 1. A case report

Hiramatsu, H., Negoro, M., Hayakawa, M., Sadatou, A., Irie, K., Uemura, A., Kanno, T. & Sano, K., 01-03-2007, In : Interventional Neuroradiology. 13, SUPPL. 1, p. 90-93 4 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Initial experiences with a new detachable coil (type-10 ED coil) for treating intracranial aneurysms

Sadato, A., Hayakawa, M., Irie, K., Negoro, M., Kato, Y., Kanno, T. & Sano, H., 12-2007, In : Japanese Journal of Neurosurgery. 16, 12, p. 954-958 5 p.

Research output: Contribution to journalArticle

Open Access
2 Citations (Scopus)

Management of complex, surgically intractable intracranial aneurysms: The option for intentional reconstruction of aneurysm neck followed by endovascular coiling

Chen, L., Kato, Y., Sano, H., Watanabe, S., Yoneda, M., Hayakawa, M., Sadato, A., Irie, K., Negoro, M., Karagiozov, K. L. & Kanno, T., 01-05-2007, In : Cerebrovascular Diseases. 23, 5-6, p. 381-387 7 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)

Virtual 3-dimensional preoperative planning with the dextroscope for excision of a 4th ventricular ependymoma

Anil, S. M., Kato, Y., Hayakawa, M., Yoshida, K., Nagahisha, S. & Kanno, T., 04-2007, In : Minimally Invasive Neurosurgery. 50, 2, p. 65-70 6 p.

Research output: Contribution to journalArticle

34 Citations (Scopus)
2006

Numerical simulation of the intra-aneurysmal flow dynamics

Shojima, M., Oshima, M., Takagi, K., Hayakawa, M., Katada, K., Morita, A. & Kirino, T., 01-2006, In : Interventional Neuroradiology. 12, SUPPL. 1, p. 49-52 4 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)
2005

An internal carotid artery dissection initially presenting with reversible ischemic neurological deficits: A case report

Harada, S., Kaito, T., Imizu, S., Nagahisa, S., Hayakawa, M. & Kanno, T., 01-2005, In : Japanese Journal of Neurosurgery. 14, 1, p. 45-49 5 p.

Research output: Contribution to journalArticle

Open Access

CT angiography with electrocardiographically gated reconstruction for visualizing pulsation of intracranial aneurysms: Identification of aneurysmal protuberance presumably associated with wall thinning

Hayakawa, M., Katada, K., Anno, H., Imizu, S., Hayashi, J., Irie, K., Negoro, M., Kato, Y., Kanno, T. & Sano, H., 2005, In : American Journal of Neuroradiology. 26, 6, p. 1366-1369 4 p.

Research output: Contribution to journalArticle

52 Citations (Scopus)
2004

Assessing prognosis of areas of acute cerebral ischemia using perfusion CT

Hayakawa, M., Negoro, M., Toyama, H., Irie, K., Imizu, S., Iritani, K., Hayashi, J., Idesawa, Y., Katada, K. & Kanno, T., 12-2004, In : Interventional Neuroradiology. 10, SUPPL. 2, p. 69-78 10 p.

Research output: Contribution to journalArticle

Open Access
2 Citations (Scopus)

Magnitude and role of wall shear stress on cerebral aneurysm: Computational fluid dynamic study of 20 middle cerebral artery aneurysms

Shojima, M., Oshima, M., Takagi, K., Torii, R., Hayakawa, M., Katada, K., Morita, A. & Kirino, T., 11-2004, In : Stroke. 35, 11, p. 2500-2505 6 p.

Research output: Contribution to journalArticle

Open Access
584 Citations (Scopus)

Prediction of impending rupture in aneurysms using 4D-CTA: Histopathological verification of a real-time minimally invasive tool in unruptured aneurysms

Kato, Y., Hayakawa, M., Sano, H., Sunil, M. V., Imizu, S., Yoneda, M., Watanabe, S., Abe, M. & Kanno, T., 01-06-2004, In : Minimally Invasive Neurosurgery. 47, 3, p. 131-135 5 p.

Research output: Contribution to journalArticle

14 Citations (Scopus)
2003
1 Citation (Scopus)

Stent assisted coil embolization: The treatment of wide-necked, dissecting, and fusiform aneurysms

Irie, K., Negoro, M., Hayakawa, M., Eayashi, J. & Kanno, T., 09-2003, In : Interventional Neuroradiology. 9, 3, p. 255-261 7 p.

Research output: Contribution to journalArticle

4 Citations (Scopus)

Treatment of a spontaneous intracranial dissecting aneurysm with stent-assisted coil embolization

Irie, K., Negoro, M., Hayakawa, M., Hayashi, J. & Kanno, T., 01-11-2003, In : Neuroradiology. 45, 11, p. 825-829 5 p.

Research output: Contribution to journalArticle

15 Citations (Scopus)
2002

Multi-slice 3D-CTA - An improvement over single slice helical CTA for cerebral aneurysms

Kato, Y., Nair, S., Sano, H., Sanjaykumar, M. S., Katada, K., Hayakawa, M. & Kanno, T., 2002, In : Acta Neurochirurgica. 144, 7, p. 715-722 8 p.

Research output: Contribution to journalArticle

61 Citations (Scopus)

Successful obliteration of a ruptured partially thrombosed giant M1 fusiform aneurysm with coil embolization at distal M1 after extracranial-intracranial bypass

Karnchanapandh, K., Imizu, M., Kato, Y., Sano, H., Hayakawa, M. & Kanno, T., 01-12-2002, In : Minimally Invasive Neurosurgery. 45, 4, p. 245-250 6 p.

Research output: Contribution to journalArticle

16 Citations (Scopus)

Three-dimensional CT angiography of central nervous system

Katada, K., Nakane, M. & Hayakawa, M., 01-11-2002, In : Brain and Nerve. 54, 11, p. 943-949 7 p.

Research output: Contribution to journalArticle

2001

Can 3D-CTA surpass DSA in diagnosis of cerebral aneurysm?

Kato, Y., Katada, K., Hayakawa, M., Nakane, M., Ogura, Y., Sano, K. & Kanno, T., 2001, In : Acta Neurochirurgica. 143, 3, p. 245-250 6 p.

Research output: Contribution to journalArticle

54 Citations (Scopus)