Abstract:
OBJECTIVE:Rathke's cleft cysts are often difficult to differentiate from other sellar cystic lesions using conventional MR imaging. The purpose of this study was to investigate the usefulness of single-shot fast spin-echo (SSFSE) diffusion-weighted MR imaging (DWI) in the diagnosis of a Rathke's cleft cyst. PATIENTS AND METHODS:We examined retrospectively 29 patients with a histologically verified sellar or suprasellar lesion containing a fluid component; 12 patients had a Rathke's cleft cyst, 6 patients a craniopharyngioma, 5 patients a haemorrhagic pituitary adenoma, and 6 patients a cystic pituitary adenoma). Several regions of interest (ROIs) for apparent diffusion coefficient (ADC) measurements were identified in the fluid components of the lesions. For comparison, ADC values were normalized using a relative ADC (rADC), which was determined by dividing the ADC values of lesions by those of normal white matter and expressing the quotient as a ratio. RESULTS:SSFSE provides diffusion-weighted images without significant susceptibility artifacts. DWI-SSFSE revealed Rathke's cleft cysts as hypointense relative to the normal brain parenchyma in all cases. The mean value of ADC for Rathke's cleft cysts was 2.12 x 10(-3) mm(2)/sec. Both the ADC and relative ADC of the Rathke's cleft cysts were significantly increased compared to those of the cystic components of craniopharyngiomas and haemorrhagic components of pituitary adenomas in the subacute phase (P < 0.05). There was not a statistically significant difference between Rathke's cleft cysts and cystic components of pituitary adenomas (P < 0.05). CONCLUSIONS:DWI-SSFSE with ADC values provides objective information in the differential diagnosis of Rathke's cleft cysts from other sellar cystic lesions. In addition, DWI-SSFSE with ADC values is useful for differentiating Rathke's cleft cysts from craniopharyngiomas and haemorrhagic pituitary adenomas.
journal_name
Acta Neurochir (Wien)journal_title
Acta neurochirurgicaauthors
Kunii N,Abe T,Kawamo M,Tanioka D,Izumiyama H,Moritani Tdoi
10.1007/s00701-007-1234-xsubject
Has Abstractpub_date
2007-08-01 00:00:00pages
759-69; discussion 769issue
8eissn
0001-6268issn
0942-0940journal_volume
149pub_type
杂志文章abstract::In Europe only few neurosurgeons are trained in both open surgical clipping as well as in endovascular techniques for treatment of intracranial aneurysms. To investigate the safety and efficacy of performing both techniques we, two dual trained neurosurgeons, analyzed our results in repairing ruptured intracranial ane...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-014-2101-1
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND:Lateral approaches to the brain stem for the resection of the cavernous malformations are preferred in order to avoid the structures within the floor of the fourth ventricle. The entry behind the pyramidal tract (PT) is usually carried out through the posterolateral surface of the brain stem. The more straig...
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abstract:BACKGROUND:The Woven EndoBridge (WEB) device has been increasingly used for the treatment of intracranial aneurysms after aneurysmal subarachnoid hemorrhage (SAH). Still, recent major clinical trials on patient management after SAH have defined WEB embolization as an exclusion criterion. In an analysis of an unselected...
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abstract::At the National Institute of Neurosurgery a team of ophthalmologists and neurosurgeons has for 20 years been collaborating in the research and treatment of optic nerve gliomas. Among 34 patients, 30 were under the age of 20 years, and 20 under the age of 10 years. Of the 20 patients younger than 10 years, 16 were girl...
journal_title:Acta neurochirurgica
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doi:10.1007/BF01809149
更新日期:1978-01-01 00:00:00
abstract:BACKGROUND:Microsurgical circumferential stripping of intracerebral metastases is often insufficient in achieving local tumor control. Supramarginal resection may improve local tumor control. METHODS:A retrospective analysis was performed for patients who underwent supramarginal resection of a cerebral metastasis by a...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-015-2405-9
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abstract:BACKGROUND:Middle cerebral artery (MCA) aneurysms are among the more challenging aneurysms for endovascular treatment. We report a contemporary 5-year experience with endovascular therapy for MCA aneurysms at a high-volume neurovascular center. METHODS:Review of prospectively maintained intracranial aneurysm database....
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doi:10.1007/s00701-012-1594-8
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abstract::In this study, which comprises 144 consecutive head injuries, the initial clinical assessment and the findings of the initial CT scan are related to the outcome. The mortality is related to the patient's level of consciousness and pupillary light reflex on admission. The disability rate (= number of disabled/number of...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01405444
更新日期:1982-01-01 00:00:00
abstract::Fourteen cases of midline vertebro-basilar trunk aneurysms were operated on by four routes of surgical approach: middle fossa anterior transpetrosal approach (ATP), presigmoid transpetrosal approach (PTP), conventional lateral suboccipital approach (LSO) or suboccipital transcondylar approach (STC). There was no morta...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01420302
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:The purpose was to review our experience with the surgical management of brainstem cavernomas (BSCs) and especially the impact of the surgical timing on the clinical outcome. METHOD:We retrospectively reviewed 22 patients harboring a BSC, who underwent 23 procedures. FINDINGS:Surgery was carried out during...
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doi:10.1007/s00701-005-0671-7
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abstract::Changes in vestibulospinal evoked potentials (VsEP) and motor evoked potentials (MEP) were examined in 10 cats before and after two different weight-dropping spinal cord injuries. In six animals somatosensory evoked potentials (SEP) were also monitored. The recordings were done from epidural spinal cord electrodes. Be...
journal_title:Acta neurochirurgica
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更新日期:1989-01-01 00:00:00
abstract:OBJECTIVE:Endoscopic 3rd ventriculostomy has become the method of choice in the management of occlusive hydrocephalus. The treatment is accompanied by significantly less peri-operative complications than the cerebrospinal fluid shunting procedures previously employed. Close surveillance of patients, however, is necessa...
journal_title:Acta neurochirurgica
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doi:10.1007/s007010050294
更新日期:1999-01-01 00:00:00
abstract::Over the past 5 years 9 patients underwent partial or complete corpus callosotomy for treatment of medically intractable epileptic seizures. A beneficial effect of the procedure was observed in 8 patients. Criteria for performance of the procedure included CT evidence of unilateral cerebral damage and non-localized ep...
journal_title:Acta neurochirurgica
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abstract::Intracranial clear-cell meningioma (CCM) is rarely reported in the literature since it has to be distinguished from other subtypes of meningioma. Most of the CCMs are intraspinal, according to the related literature. We report a case of occipital parietal CCM in a 6-year-old child, review all the 35 intracranial CCMs ...
journal_title:Acta neurochirurgica
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abstract:BACKGROUND:It is essential to have easy to use, reliable tools to assess and compare facial function for clinical records, audit and research purposes. In this study, two different techniques were examined, Hand held calipers (HHC, as described by Burres), and computerised analysis of digital photographs (CAOP) using A...
journal_title:Acta neurochirurgica
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更新日期:2006-12-01 00:00:00
abstract:BACKGROUND:Several studies have investigated the relation between intraoperative abnormal muscle response (AMR) findings and postoperative results in patients undergoing microvascular decompression (MVD) for hemifacial spasm (HFS). However, there is some debate over the reliability of AMR as an indicator of postoperati...
journal_title:Acta neurochirurgica
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doi:10.1007/s00701-005-0571-x
更新日期:2005-09-01 00:00:00
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doi:10.1007/s00701-016-2733-4
更新日期:2016-04-01 00:00:00
abstract:BACKGROUND:Some intracranial aneurysms treated by stent-assisted coiling (SAC) with incomplete occlusion undergo progressive occlusion (PO) during follow-up period. We analyzed the predictors for the occurrence of PO. METHODS:Among 74 cerebral aneurysms treated by SAC using the Enterprise or Neuroform stents from 2010...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-017-3199-8
更新日期:2017-07-01 00:00:00
abstract::The authors report the case of a 67-year-old woman with primary micro-invasive squamous cell carcinoma located in the lateral ventricle and originating from an epidermoid cyst. Radiological and histological features of the neoplasm are described and the relevant literature is studied briefly. Two consecutive surgical ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01411292
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND:Aneurysmal subarachnoid hemorrhage (SAH) causes long-term psychosocial impairments even in patients who regain functional independence. Little is known about predictors of these impairments. We studied how early clinical data and neuropsychological results predict work status and health-related quality of li...
journal_title:Acta neurochirurgica
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doi:10.1007/s00701-012-1417-y
更新日期:2012-08-01 00:00:00
abstract::SPECT scanning with Tl-201 and Tc-99m offers a unique, inexpensive functional imaging modality to combine with CT stereotactic craniotomy for guiding resection of necrosis and/or tumour in patients treated with escalated doses of radiation (> 6000 cGy) by either brachytherapy or radiosurgery. Thirty-two cases were ana...
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更新日期:2001-01-01 00:00:00
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journal_title:Acta neurochirurgica
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更新日期:1990-01-01 00:00:00
abstract:BACKGROUND:We verified the effectiveness of training in endoscopic endonasal transsphenoidal surgery (eETSS) techniques using chicken eggs and a skull model. METHODS:We verified the area of eggshell removed by drilling when five residents and four experts used the chicken eggs and a skull model. RESULTS:When resident...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/s00701-014-2035-7
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND:As the anatomical three-dimensional (3D) positional relationship around the anterior clinoid process (ACP) is complex, experience of many surgeries is necessary to understand anterior clinoidectomy (AC). We prepared a 3D synthetic image from computed tomographic angiography (CTA) and magnetic resonance imagi...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
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更新日期:2017-09-01 00:00:00
abstract::Thirty-one consecutive symptomatic patients with burst fractures of the lower thoracic or lumbar spine (T 11-L4) were treated by early surgery in a 36-month period, with near-anatomical reduction being achieved via the postero-lateral route. Fusion and reconstruction of the vertebral body was done by using autologous ...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
doi:10.1007/BF01541254
更新日期:1992-01-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s007010050325
更新日期:1999-01-01 00:00:00
abstract::In a period of 13 years 978 cases of severe head injuries were operated on in our clinic. An analysis of the medical reports includes injuries of the superficial dural sinus (39 cases = 4%): among these injuries of the anterior and central part of the superior sagittal sinus (66 per cent), injuries of the transverse s...
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pub_type: 杂志文章
doi:10.1007/BF01541788
更新日期:1992-01-01 00:00:00
abstract::A 28-year-old man with genetically confirmed hyperostosis corticalis generalisata (Van Buchem disease) suffered from headache and progressive cognitive and sensibility disorders. Bone formation of the skull was ongoing, leading to narrowing of the intracranial space and foramen magnum. A large bilateral frontoparietal...
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更新日期:2015-07-01 00:00:00
abstract:BACKGROUND:The rostral expanded endoscopic approach (EEA) to anterior cranial fossa (ACF) has several advantages over transcranial/craniofacial surgery, providing early access to the vascular supply of tumors and reducing morbidities of craniotomy especially that of brain retraction. This article presents endoscopic la...
journal_title:Acta neurochirurgica
pub_type: 杂志文章
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更新日期:2020-06-01 00:00:00
abstract::From a clinical standpoint recovery of spinal nerve roots is less likely than that of peripheral nerves, despite their identical structures. This may be due to several factors including the length of gap to be bridged, changes in the proximal stump or neuroma, and chromatolysis. In this paper we discuss the roles of s...
journal_title:Acta neurochirurgica
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更新日期:1976-01-01 00:00:00