Anatomical variations and neurosurgical significance of Liliequist’s membrane

Mortazavi, Martin M.; Rizq, Fareed; Harmon, Olivia; Adeeb, Nimer; Gorjian, Mehrnoush; Hose, Nicole; Modammadirad, Elham; Taghavi, Pejman; Rocque, Brandon G.; Tubbs, R. Shane

doi:10.1007/s00381-014-2590-5

Cited by 20 publications

(15 citation statements)

References 56 publications

(133 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Endoscopic aqueductoplasty can be preferred as the initial restorative method in patients with occlusion within the aqueduct secondary to the webs [8]. Interpedincular, suprasellar and prepontine cisterns are very narrow and can be obstructed easily in patients with subarachnoid hemorrhage or meningeal infection [21]. In these cases, failure rate is high in ETV procedure.…”

Section: Evaluation Of Endoscopic or Spontaneous Third Ventriculostommentioning

confidence: 99%

“…In these cases, failure rate is high in ETV procedure. Factors affecting the failure risk of ETV can be summarized as follows; complex third ventricular anatomy, thickened/twisted Liliequist membrane or third ventricular floor, thickened prepontine or cervical cistern membranes, adhesions in the subarachnoid space, non-visible aqueduct obstruction, normal or minimally dilated third ventricular recesses, and/or small stoma [6,20,21]. All of these findings can be demonstrated using only T2W 3D-SPACE VFAM technique in a fast, effective and a more convenient way for the patients [6,7].…”

Section: Evaluation Of Endoscopic or Spontaneous Third Ventriculostommentioning

confidence: 99%

“…Liliequist membrane (LM) forms a complete division in the basal subarachnoid space [21]. Thus; LM fenestration has crucial importance for success of ETV [23].…”

Section: Liliequist Membrane Patency and Its Morphologymentioning

confidence: 99%

“…Unless LM is fenestrated during ETV procedure, accurate CSF flow from third ventricle into the prepontine cistern or foramen magnum cannot be established [20]. Although the importance of LM is well understood; morphology, attachment sites and variation regarding to this structure is not fully known and there have been several conflicting reports published [20][21][22][23]. This may be attributed to the fact that LM is a very thin membrane and shows variations, thus it is challenging to establish After the shunt operation rhinorrhea is completely regressed.…”

Section: Liliequist Membrane Patency and Its Morphologymentioning

confidence: 99%

See 3 more Smart Citations

Evaluation of hydrocephalus patients with 3D-SPACE technique using variant FA mode at 3T

Algın

2017

Acta Neurol Belg

View full text Add to dashboard Cite

The major advantages of three-dimensional sampling perfection with application optimized contrasts using different flip-angle evolution (3D-SPACE) technique are its high resistance to artifacts that occurs as a result of radiofrequency or static field, the ability of providing images with sub-millimeter voxel size which allows obtaining reformatted images in any plane due to isotropic three-dimensional data with lower specific absorption rate values. That is crucial during examination of cerebrospinal-fluid containing complex structures, and the acquisition time, which is approximately 5 min for scanning of entire cranium. Recent data revealed that T2-weighted (T2W) 3D-SPACE with variant flip-angle mode (VFAM) imaging allows fast and accurate evaluation of the hydrocephalus patients during both pre- and post-operative period for monitoring the treatment. For a better assessment of these patients; radiologists and neurosurgeons should be aware of the details and implications regarding to the 3D-SPACE technique, and they should follow the updates in this field. There could be a misconception about the difference between T2W-VFAM and routine heavily T2W 3D-SPACE images. T2W 3D-SPACE with VFAM imaging is only a subtype of 3D-SPACE technique. In this review, we described the details of T2W 3D-SPACE with VFAM imaging and comprehensively reviewed its recent applications.

show abstract

Section: Evaluation Of Endoscopic or Spontaneous Third Ventriculostommentioning

confidence: 99%

Section: Evaluation Of Endoscopic or Spontaneous Third Ventriculostommentioning

confidence: 99%

“…Liliequist membrane (LM) forms a complete division in the basal subarachnoid space [21]. Thus; LM fenestration has crucial importance for success of ETV [23].…”

Section: Liliequist Membrane Patency and Its Morphologymentioning

confidence: 99%

Section: Liliequist Membrane Patency and Its Morphologymentioning

confidence: 99%

See 2 more Smart Citations

Evaluation of hydrocephalus patients with 3D-SPACE technique using variant FA mode at 3T

Algın

2017

Acta Neurol Belg

View full text Add to dashboard Cite

show abstract

“…When performing ETV, additional perforation of the Liliequist membrane is of importance. The Liliequist membrane is a normal variant membranous structure that extends from the upper rim of the dorsum sellae to the anterior rim of the mammalian bodies, forming a blockade in the basilar cistern . Our case also had a membranous structure in the prepontine cistern (prepontine membrane).…”

Section: Discussionmentioning

confidence: 66%

Long‐standing overt ventriculomegaly without aqueductal stenosis: A case report

Ikumi

Tsuboi

Atsuta

et al. 2017

Neurology & Clinical Neurosc

View full text Add to dashboard Cite

We report a case of long-standing overt ventriculomegaly without aqueductal stenosis. A 66-year-old woman developed progressive gait disturbance. Her gait was wide-based, with a difficulty in turning. Prominent macrocephaly was present, which suggests the presence of long-standing hydrocephalus since childhood. Cognitive impairments were detected on neuropsychological tests. Cerebral magnetic resonance imaging revealed marked enlargement of the third and lateral ventricles. Aqueductal stenosis was not apparent; however, endoscopic third ventriculostomy partly ameliorated gait disturbance. Endoscopic third ventriculostomy can be a therapeutic option for long-standing overt ventriculomegaly even if the aqueduct is patent.

show abstract

Microsurgical Anatomy of the Oculomotor Nerve

et al. 2016

View full text Add to dashboard Cite

The oculomotor nerve supplies the extraocular muscles. It also supplies the ciliary and sphincter pupillae muscles through the ciliary ganglion. The nerve fibers leave the midbrain through the most medial part of the cerebral peduncle and enter the interpeduncular cistern. After the oculomotor nerve emerges from the interpeduncular fossa, it enters the cavernous sinus slightly lateral and anterior to the dorsum sellae. It enters the orbit through the superior orbital fissure, after exiting the cavernous sinus, to innervate the extraocular muscles. Therefore, knowledge of the detailed anatomy and pathway of the oculomotor nerve is critical for the management of lesions located in the middle cranial fossa and the clival, cavernous, and orbital regions. This review describes the microsurgical anatomy of the oculomotor nerve and presents pictures illustrating this nerve and its surrounding connective and neurovascular structures. Clin. Anat. 30:21-31, 2017. © 2016 Wiley Periodicals, Inc.

show abstract

Anatomical variations and neurosurgical significance of Liliequist’s membrane

Abstract: Regardless of its clinical and surgical significance, the anatomy of Liliequist's membrane is still a matter of debate.

Cited by 20 publications

References 56 publications

Evaluation of hydrocephalus patients with 3D-SPACE technique using variant FA mode at 3T

Evaluation of hydrocephalus patients with 3D-SPACE technique using variant FA mode at 3T

Long‐standing overt ventriculomegaly without aqueductal stenosis: A case report

Microsurgical Anatomy of the Oculomotor Nerve

Contact Info

Product

Resources

About