Method for quantitatively evaluating the lateralization of linguistic function using functional MR imaging

S Nagata, K Uchimura, W Hirakawa… - American Journal of …, 2001 - Am Soc Neuroradiology
BACKGROUND AND PURPOSE: Various methods for evaluating the lateralization of linguistic
function using functional MR imaging have been proposed. However, the optimal method …

Pituitary adenoma with cholesterol clefts

S Yokoyama, M Goto, H Hirano, W Hirakawa… - Endocrine …, 1998 - Springer
Histologically, cholesterol clefts are often observed in craniopharyngioma, Rathke’s cleft cyst,
and various granulomas. However, pituitary adenomas with cholesterol clefts are rare. A 46…

Functional magnetic resonance imaging of the human motor cortex

…, M Niiro, A Haruzono, W Hirakawa… - Neurologia medico …, 1995 - jstage.jst.go.jp
Functional magnetic resonance(MR) imaging of the brain was performed during motor task
activa tion in five normal subjects and a patient with meningioma using conventional fast low-…

Analysis of metabolites in human brain tumors and cerebral infarctions using {sup 31} P-and {sup 1} H-magnetic resonance spectroscopy

W Hirakawa - Kagoshima Daigaku Igaku Zasshi (Medical Journal of …, 1996 - osti.gov
{sup 31}P- and {sup 1}H-MRS with a 2.0 tesla MRI/S system was used to monitor the cerebral
energy levels, phospholipid metabolism, intracellular pH, and lactate and amino acid …

A clinical application of {sup 31} P and {sup 1} H-MR spectroscopy in cerebrovascular disease

…, K Kadota, M Niiro, K Terada, W Hirakawa… - No Sotchu (Japanese …, 1995 - osti.gov
Due to the development of non-invasive magnetic resonance spectroscopy (MRS) techniques,
metabolic and functional data on the ischemic human brain have been obtained. We …

Evaluation of acute radiation damage of the normal brain using 31P-MR spectroscopy

W Hirakawa, T Asakura, K Kadota, M Sasahira… - CI Kenkyu, 1996 - inis.iaea.org
[en] The authors evaluated the effect of radiotherapy on the normal brain in patients with
brain tumor. 31 P-magnetic resonance spectroscopy (31 P-MRS) was used to determine the …

Analysis of metabolites in human brain tumors and cerebral infarctions using 31P- and 1H-magnetic resonance spectroscopy

W Hirakawa - Kagoshima Daigaku Igaku Zasshi, 1996 - inis.iaea.org
[en] 31 P-and 1 H-MRS with a 2.0 tesla MRI/S system was used to monitor the cerebral
energy levels, phospholipid metabolism, intracellular pH, and lactate and amino acid levels in …

A clinical application of 31P and 1H-MR spectroscopy in cerebrovascular disease

…, T Asakura, K Kadota, M Niiro, K Terada, W Hirakawa… - No Sotchu, 1995 - inis.iaea.org
[en] Due to the development of non-invasive magnetic resonance spectroscopy (MRS)
techniques, metabolic and functional data on the ischemic human brain have been obtained. We …

[CITATION][C] A new method of presurgical evaluation of partial epilepsy with 31P MRS/CSI

…, T ASAKURA, M NIIRO, W HIRAKAWA… - Psychiatry and …, 1995 - Wiley Online Library
The authors have investigated the efficacy of magnetic resonance imaging (MRI) for identifying
foci in patients with refractory epilepsy and evaluating candidates for surgical treatment. …

Quality of life and functional status of terminally ill head and neck cancer patients: a nation-wide, prospective observational study at tertiary cancer centers in Japan

…, S Iwase, T Yamaguchi, H Hirakawa… - Japanese Journal of …, 2017 - academic.oup.com
Background Little is known about quality of life and functional status of patients with
terminally ill head and neck cancers. Methods We conducted a multicenter, prospective, …