Variation in equation coefficients in the gravimetric method to determine brain water content.

Abstract:

:The gravimetric method to determine the tissue water content is widely used for studying brain edema because the tissue water content can be calculated from only the density of the wet tissue using a gradient column. This method has been used in only a few studies of cerebellar water content. We estimated the water content of the cerebellar cortex by the gravimetric method and compared the results with those measured by the conventional drying-weighing method, and found a significant difference. We therefore propose modified coefficients for the equation for the water content of the cerebellar cortex as follows: % tissue water content = 456.13(1/wet tissue density) - 356.13 This equation and the drying-weighing method were used to investigate normal and edematous cerebellar cortices after compression with an epidural balloon. The modified equation provided results consistent with the drying-weighing method. Differences in the total experimental system including the breed and pre-experimental condition of the cats may be factors in variations in measured values. We recommend that investigators establish equation coefficients valid for individual experimental systems.

authors

Hayazaki K,Matsuoka Y,Kan M,Hakuba A

doi

10.2176/nmc.35.69

subject

Has Abstract

pub_date

1995-02-01 00:00:00

pages

69-74

issue

2

eissn

0470-8105

issn

1349-8029

pii

JST.Journalarchive/nmc1959/35.69

journal_volume

35

pub_type

杂志文章
  • Purely endoscopic repair of traumatic cerebrospinal fluid rhinorrhea from the anterior skull base: case report.

    abstract::A 38-year-old woman presented with a case of post-traumatic ethmoidal cerebrospinal fluid (CSF) leak that was repaired using a purely endoscopic endonasal approach. Six weeks after a mild domestic maxillofacial trauma, she started complaining of clear, watery discharge from the left nostril and headache. Neuroimaging ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.51.222

    authors: Komatsu M,Komatsu F,Cavallo LM,Solari D,Stagno V,Inoue T,Cappabianca P

    更新日期:2011-01-01 00:00:00

  • Ruptured fusiform aneurysm of the proximal anterior cerebral artery (A1 segment).

    abstract::A 42-year-old man presented with a ruptured fusiform aneurysm of the proximal anterior cerebral artery (A(1) segment) manifesting as sudden onset of severe headache. Brain computed tomography revealed subarachnoid hemorrhage in the basal cisterns, and left carotid angiography demonstrated a fusiform aneurysm of the le...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.47.351

    authors: Aoki Y,Nemoto M,Yokota K,Kano T,Goto S,Sugo N

    更新日期:2007-08-01 00:00:00

  • Bone window computed tomography for detection of dural defect associated with cervical ossified posterior longitudinal ligament.

    abstract::Anterior decompression of a cervical ossified posterior longitudinal ligament (OPLL) which involves the dura mater occasionally results in a postoperative cerebrospinal fluid fistula. Bone window computed tomography (CT) was carried out to detect dural defects in 21 patients with cervical OPLL. Twelve of 21 patients h...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.37.173

    authors: Hida K,Iwasaki Y,Koyanagi I,Abe H

    更新日期:1997-02-01 00:00:00

  • Dural-pial arteriovenous malformation with unusual venous drainage.

    abstract::A 41-year-old female presented with an uncommon mixed dural-pial arteriovenous malformation (AVM) with unusual venous drainage. Angiography at the initial operation for massive intracerebral hematoma in the parietal lobe showed no vascular malformations. Follow-up angiography 3 years later revealed a mixed dural-pial ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.36.91

    authors: Miyasaka Y,Kurata A,Saegusa H,Yuzawa I,Utsuki S,Ohwada T

    更新日期:1996-02-01 00:00:00

  • [Pituitary hemorrhage extending into the third ventricle. Case report].

    abstract::A case of pituitary apoplexy causing pituitary hemorrhage with extension into the third ventricle is reported. The patient was a 73-year-old, obese female admitted with sudden onset of vomiting and impaired consciousness. Neurological examination revealed that she was stuporous, with marked neck stiffness and a dilate...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.29.908

    authors: Takasugi N,Doi A

    更新日期:1989-10-01 00:00:00

  • Retroperitoneal approach for lumbar lateral meningocele--case report.

    abstract::A 29-year-old female with neurofibromatosis presented with a right lumbar lateral meningocele. Abdominal computed tomography (CT) showed a huge right retroperitoneal cyst expanding anterolaterally and displacing the right kidney. CT following myelography disclosed the cyst expanding through a wide defect of the right ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.35.905

    authors: Miyata M,Yamasaki S,Yoshida T,Matsubara M,Okamura M,Hirayama A,Tamaki N

    更新日期:1995-12-01 00:00:00

  • Fluorine-18-fluorodeoxyglucose positron emission tomography may predict the outcome in patients with asymptomatic mild stenosis of internal carotid artery--case report.

    abstract::A 47-year-old male presented with asymptomatic mild (45%) internal carotid artery (ICA) stenosis associated with familial hypercholesterolemia. Fluorine-18-fluorodeoxyglucose ([(18)F]FDG) positron emission tomography (PET) showed that the carotid plaque had high uptake of [(18)F]FDG on the initial scan. He was treated...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.51.720

    authors: Motegi H,Kuroda S,Nakayama N,Hirata K,Shiga T,Tamaki N

    更新日期:2011-01-01 00:00:00

  • Surgical correction of trigonocephaly: theoretical basis and operative procedures.

    abstract::Trigonocephaly involves premature fusion of both the metopic suture and the sutures in the skull base. Surgical treatment by opening of the prematurely fused metopic suture and expansion of the anterior cranial base by creating "neosutures" was used to treat three children with trigonocephaly. The combination of later...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.38.110

    authors: Moriyama E,Beck H,Iseda K,Saitoh N,Sakurai M,Matsumoto Y

    更新日期:1998-02-01 00:00:00

  • Hearing Restoration with Auditory Brainstem Implant.

    abstract::Auditory brainstem implant (ABI) technology attempts to restore hearing in deaf patients caused by bilateral cochlear nerve injury through the direct stimulation of the brainstem, but many aspects of the related mechanisms remain unknown. The unresolved issues can be grouped into three topics: which patients are the b...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章,评审

    doi:10.2176/nmc.ra.2016-0080

    authors: Nakatomi H,Miyawaki S,Kin T,Saito N

    更新日期:2016-10-15 00:00:00

  • Multilevel acute spinal epidural hematoma in a patient with chronic renal failure--case report.

    abstract::A 47-year-old female with diabetic nephropathy presented with acute onset of severe back pain and progressive weakness in both lower extremities. Neuroimaging revealed a spinal epidural hematoma extending from the T-3 vertebra to the sacrum. Removal of all or every other lamina on levels with epidural hematoma and eme...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.43.409

    authors: Ziyal IM,Aydin S,Inci S,Sahin A,Ozgen T

    更新日期:2003-08-01 00:00:00

  • Utility of direct stimulation of roots in spinal surgery.

    abstract::Prevention of postoperative neurological deficits is a major concern of spinal surgeons and has led to the introduction and current development of intraoperative neurophysiological monitoring. We have used motor evoked potentials and somatosensory evoked potentials as routine monitoring techniques and, in some cases, ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.51.356

    authors: Takeda M,Yamaguchi S,Morishige M,Eguchi K,Kurisu K

    更新日期:2011-01-01 00:00:00

  • Status and Future Perspectives of Utilizing Big Data in Neurosurgical and Stroke Research.

    abstract::The management, analysis, and integration of Big Data have received increasing attention in healthcare research as well as in medical bioinformatics. The J-ASPECT study is the first nationwide survey in Japan on the real-world setting of stroke care using data obtained from the diagnosis procedure combination-based pa...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章,评审

    doi:10.2176/nmc.ra.2016-0174

    authors: Nishimura A,Nishimura K,Kada A,Iihara K,J-ASPECT Study GROUP.

    更新日期:2016-11-15 00:00:00

  • The role of the paraventricular nucleus and pituitary gland in morphine analgesia.

    abstract::The authors investigated the analgesic effects of small morphine doses injected into the paraventricular nucleus (PVN) of normal rats and hypophysectomized (Hx) rats. An injection cannula was stereotactically inserted into the PVN or third ventricle. On the 5-7th postoperative day, morphine (7 micrograms) was injected...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.31.629

    authors: Hashimoto M,Ohgami S,Yonemasu Y

    更新日期:1991-10-01 00:00:00

  • Clinical significance of Ki-67 staining index in acoustic neurinoma.

    abstract::The correlation between various clinical parameters and MIB-1 (Ki-67) staining indices was evaluated in 58 acoustic neurinomas. The index ranged from 0.37% to 6.61% (mean 1.70%), and did not correlate with age, sex, or initial tumor volume. Sixteen of the 18 tumors removed subtotally or partially showed regrowth, and ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章,评审

    doi:10.2176/nmc.36.698

    authors: Yokoyama M,Matsuda M,Nakasu S,Nakajima M,Handa J

    更新日期:1996-10-01 00:00:00

  • Subarachnoid Hemorrhage from Vertebral Arteriovenous Fistula without Perimedullary Drainage: Rare Stroke Hemorrhagic Event in a Patient of Neurofibromatosis Type 1.

    abstract::Vertebral arteriovenous fistula (VAVF), which can cause subarachnoid hemorrhage (SAH) when having a perimedurally drainage, has been reported as a rare vascular abnormality in patients with neurofibromatosis type 1 (NF-1). In addition, extracranial vertebral aneurysm (EVAn) coexisting with VAVF and NF-1 is considered ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.cr.2017-0241

    authors: Maki Y,Ishibashi R,Fukuda H,Kobayashi M,Chin M,Yamagata S

    更新日期:2018-04-15 00:00:00

  • Clinical value of constructional skill testing in patients with secondary normal pressure hydrocephalus--two case reports.

    abstract::Cognitive functions are frequently impaired in patients with normal pressure hydrocephalus (NPH). Two patients with NPH initially had dysfunctional constructional skill but exhibited improvements after shunt surgery. Dysfunction of constructional skill should be added to the important clinical features of NPH. The geo...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.47.322

    authors: Takeuchi M,Hayashi N,Takaiwa A,Hamada H,Kuwayama N,Hirashima Y,Matsui M,Endo S

    更新日期:2007-07-01 00:00:00

  • Invasive Evaluations for Epilepsy Surgery: A Review of the Literature.

    abstract::Invasive evaluations play important roles in identifying epileptogenic zones and functional areas in patients with intractable focal epilepsy. This article reviews the usefulness, methods, and limitations of invasive evaluations for epilepsy surgery. Invasive evaluations include various types of intracranial electrode...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章,评审

    doi:10.2176/nmc.ra.2015-0319

    authors: Enatsu R,Mikuni N

    更新日期:2016-05-15 00:00:00

  • Limited efficacy of endoscopic third ventriculostomy for hydrocephalus following aneurysmal subarachnoid hemorrhage.

    abstract::Endoscopic third ventriculostomy (ETV) has not been recognized as a surgical option for hydrocephalus following aneurysmal subarachnoid hemorrhage (SAH), since hydrocephalus following aneurysmal SAH is considered to result from the communicating component. However, obstructions in the ventricular system may exist, so ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.49.449

    authors: Fukuhara T,Shimizu T,Namba Y

    更新日期:2009-10-01 00:00:00

  • Diagnosis of Intracranial Artery Dissection.

    abstract::Cerebral arterial dissection is defined as a hematoma in the wall of a cervical or an intracranial artery. Cerebral arterial dissection causes arterial stenosis, occlusion, and aneurysm, resulting in acute infarction and hemorrhage. Image analysis by such methods as conventional angiography, computed tomography, magne...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章,评审

    doi:10.2176/nmc.ra.2015-0294

    authors: Kanoto M,Hosoya T

    更新日期:2016-09-15 00:00:00

  • Aspergillus mycotic aneurysm--case report.

    abstract::A 61-year-old female developed subarachnoid hemorrhage after trans-sphenoidal surgery for Rathke's cleft cyst. Neuroradiological examination revealed a large aneurysm at the C1 portion of the right internal carotid artery. Autopsy revealed marked proliferation of aspergillus hyphae in the wall of the aneurysm. A revie...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章,评审

    doi:10.2176/nmc.31.346

    authors: Komatsu Y,Narushima K,Kobayashi E,Tomono Y,Nose T

    更新日期:1991-06-01 00:00:00

  • Suprachiasmal carotid-ophthalmic artery aneurysm--report of two cases.

    abstract::Two rare suprachiasmal carotid-ophthalmic artery aneurysms, one large and one giant, were discovered incidentally. The patients had no visual disturbances. Angiography showed superomedial projection of the sac. The aneurysms were clipped via an ipsilateral pterional approach. A suprachiasmal carotid-ophthalmic artery ...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.32.952

    authors: Diraz A,Kobayashi S,Okudera H,Nakagawa F,Tsuji T,Toba Y

    更新日期:1992-12-01 00:00:00

  • Cervical (non-terminal) myelocystocele associated with rapidly progressive hydrocephalus and Chiari type II malformation--case report.

    abstract::An infant presented with a rare cervical (non-terminal) myelocystocele as a congenital skin-covered mass located in the midline of the posterior aspect of her neck. Magnetic resonance (MR) imaging and computed tomography showed a cystic mass filled with cerebrospinal fluid in the midline of the posterior aspect of the...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.50.174

    authors: Ochiai H,Kawano H,Miyaoka R,Nagano R,Kohno K,Nishiguchi T,Shimao Y

    更新日期:2010-01-01 00:00:00

  • Intracranial extracerebral neuroblastoma originating from the convexity dura mater.

    abstract::A 19-year-old female presented with an unusual intracranial extracerebral neuroblastoma originating from the dura mater. The tumor was located in the right frontal convexity, and had adhered neither to the underlining arachnoid membrane nor the cerebral cortex. The tumor feeders were meningeal arteries. Light microsco...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.36.19

    authors: Ishii N,Sawamura Y,Aoki T,Nagashima K,Kashiwaba T,Abe H

    更新日期:1996-01-01 00:00:00

  • Cystic lesion at the foramen magnum disseminated from a pituitary adenoma--case report.

    abstract::A 38-year-old male presented with a cystic lesion at the foramen magnum due to intracranial dissemination from a pituitary adenoma. The primary tumor had required reoperation for regrowth twice. The tumor at the foramen magnum was removed surgically. Two smaller solid tumors were located in the left parietal convexity...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.39.606

    authors: Shimizu K,Takamiya Y,Furuhata S,Naritaka H,Kameya T

    更新日期:1999-08-01 00:00:00

  • Successful removal of meningioma of the pineal region after embolization.

    abstract::A 69-year-old female presented with a meningioma of the pineal region manifesting as gait disturbance and mental dysfunction. Magnetic resonance imaging revealed a homogeneously well-enhanced circumscribed round mass of about 5 cm in diameter in the pineal region. Angiography demonstrated that the tumor was fed mainly...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.37.852

    authors: Sagoh M,Onozuka S,Murakami H,Hirose Y

    更新日期:1997-11-01 00:00:00

  • Transoral vs. endoscopic endonasal approach for clival/upper cervical chordoma.

    abstract::The surgical results of 18 cases of clival/upper cervical chordoma treated in the last decade via the endoscopic endonasal approach (EEA, 9 cases) and the transoral-transpalatal approach (TO-TPA, 9 cases) were compared. Each group showed the same incidence of subdural invasion, with 5 cases each. The superior (frontal...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:

    authors: Shidoh S,Toda M,Kawase T,Nakajima H,Tomita T,Ogawa K,Yoshida K

    更新日期:2014-01-01 00:00:00

  • Intracranial cavernous angioma manifesting as subarachnoid hemorrhage--case report.

    abstract::A 56-year-old male presented with a posterior fossa cavernous angioma manifesting as persistent headache with mild neck stiffness. Lumbar puncture revealed subarachnoid hemorrhage (SAH). Repeated four-vessel angiography failed to identify the source of the SAH. Magnetic resonance (MR) imaging demonstrated multiple sma...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.33.706

    authors: Yamamoto M,Fukushima T,Ikeda K,Nagasaka S,Sakamoto S,Oka K,Tomonaga M,Maehara F

    更新日期:1993-10-01 00:00:00

  • Metronidazole Induced Encephalopathy Mimicking an Acute Ischemic Stroke Event.

    abstract::Metronidazole induced encephalopathy (MIE), an encephalopathy brought by an antibiotic, is characterized with cerebellar dysfunction, altered mental status and extrapyramidal symptoms. MIE can result in an acute manifestation, but MIE has not been reported as a stroke mimic. An 86-year-old patient undergoing metronida...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.cr.2018-0107

    authors: Takada K,Maki Y,Kinosada M,Ishibashi R,Chin M,Yamagata S

    更新日期:2018-09-15 00:00:00

  • Anomalous origin of the ophthalmic artery from the anterior cerebral artery.

    abstract::A 39-year-old woman presented with left visual disturbance and diplopia. Magnetic resonance imaging revealed a well-enhanced tumor in the left tentorium, cavernous sinus, and suprasellar region. Angiography demonstrated an abnormal origin of the ophthalmic artery from the anterior cerebral artery. The tumor was partia...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.51.579

    authors: Li Y,Horiuchi T,Yako T,Ishizaka S,Hongo K

    更新日期:2011-01-01 00:00:00

  • Pituitary abscess showing high uptake of thallium-201 on single photon emission computed tomography--case report.

    abstract::A 32-year-old female presented with a rare case of pituitary abscess manifesting as homonymous hemianopsia. Serum prolactin level was slightly high (40.8 ng/ml). Magnetic resonance (MR) imaging showed the content of the lesion as homogeneously isointense on the T1-weighted images and hyperintense on the T2-weighted im...

    journal_title:Neurologia medico-chirurgica

    pub_type: 杂志文章

    doi:10.2176/nmc.43.100

    authors: Shimamura N,Ogane K,Takahashi T,Tabata H,Ohkuma H,Suzuki S

    更新日期:2003-02-01 00:00:00