Changes in Phosphorus-31 Magnetic Resonance Spectra Caused by Epidural Balloon in Cats

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概要

• 論文の詳細を見る

• Changes in brain high energy phosphate metabolite and pH levels were studied using serial phosphorus (P)-31 magnetic resonance spectroscopy (MRS) in an epidural balloon cat model. The balloon was inflated with 1, 2, 3, or 4 ml of water at 1 ml/sec and deflated after obtaining a spectrum 4 minutes later. Serial spectra, intracranial pressure (ICP), physiological parameters, and the pupil sizes were observed for 1 hour. The mean ICP after balloon inflation increased to between 36 ± 3 and 130 ± 6 mmHg. Some animals showed oculomotor paralyses. Phosphocreatine, adenosine triphosphate, phosphodiester, and phosphomonoester levels suddenly decreased after inflation and gradually recovered after balloon deflation. Acidosis progressed with cerebral compression for 4 minutes and gradually recovered. All changes and recovery were volume related. This study demonstrates the potential of P-31 MRS for noninvasive, serial, in vivo measurements of critical high energy phosphate metabolites and intracellular pH after head injury.

• 日本脳神経外科学会の論文
• 1991-07-15

著者

• KAWANO Hirokazu

  Department of Neurosurgery, Miyazaki Prefectural Hospital

• HAYASHI Minoru

  Department of Materials Science and Engineering, Nagoya Institute of Technology

• Hayashi Minoru

  Department Of Neurosurgery Fukui Medical School

• Kawano Hirokazu

  Department Of Neurosurgery Fukui Medical School

• Kabuto Masanori

  Department Of Neurosurgery Fukui Medical School

• Handa Yuji

  Department of Neurosurgery, Fukui Medical University

• Handa Yuji

  Division Of Neurosurgery Department Of Sensory & Locomotor Medicine Faculty Of Medical Science U

• Handa Yuji

  Department Of Neurosurgery Fukui Medical School

• KOBAYASHI Hidenori

  Department of Neurosurgery, Fukui Medical School

• Kobayashi Hidenori

  Department Of Neurosurgery Fukui Medical School

• Kobayashi Hidenori

  Department Of Civil Engineering Saitama University

• IDE Hisashi

  Department of Neurosurgery, Fukui Medical School

• Ide Hisashi

  Department Of Neurosurgery Fukui Medical School

• Hayashi Minoru

  Department Of Applied Chemistry Faculty Of Engineering Ehime University

• Handa Yuji

  Division Of Neurosurgery Department Of Sensory & Locomotor Medicine Faculty Of Medical Science U

• Kobayashi Hidenori

  Department Of Brain And Nerve Science Oita Medical University

• KAWANO Hirokazu

  Department of Neurosurgery, Fukui Medical School

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