Simulation of the surgery of posterior transcallosal approach to posterior thalamus on MRI
XU Min， WANG Cun-zu，ZHU Xun，CHEN Pin
Chinese Journal of Clinical Anatomy ›› 2016, Vol. 34 ›› Issue (3) : 273-277.
Simulation of the surgery of posterior transcallosal approach to posterior thalamus on MRI
Objective To measure anatomical data for posterior transcallosal approach in dealing with tumors in posterior thalamus for normalization and optimization of the surgical approach. Methods One hundred and twenty midline sagittal T2-weighted magnetic resonance images (children group, 25 cases; adult group, 95 cases) were obtained. Taking lambda as a reference point, surgical schemes 1 and 2 were established. Two surgical plans of the posterior transcallosal approach to posterior thalamus on the images were simulated and the data of the related anatomical structures were obtained. Results (1)Data obtained from the scheme 1 and 2 showed that the skull window was located as follows: in children group, the skull window of scheme 1 was located before lambda (≤29.89±4.36 mm),while after lambda (≤37.04±3.22 mm); in adult group, the skull window of scheme 1 was located before lambda (≤31.20±7.36 mm),while after lambda (≤43.05±10.36 mm).In children group, the skull window of scheme 2 was located after lambda (≤37.04±3.22 mm); in adult group, the skull window of scheme 2 was located after lambda (≤43.05±10.36 mm). (2) The average length between lambda and posterior thalamus in children was (82.71±3.92) mm, while in adult group was (87.42±9.24) mm. The surgical angle of scheme 1 was shown as follows: in children group was less than (44.56±4.15)°, while in adult was less than (55.02±7.42)°. The surgical angle of scheme 2 was shown as follows: in children group was less than (24.28±3.25)°, while in adult was less than (31.33±8.25)°. Conclusions The sufficient evaluation of MRI is helpful to master the approach. Furthermore, to select, optimize the surgical approach and increase the clinical curative effects.
Magnetic resonance imaging / Posterior thalamus / Posterior transcallosal approach / Surgical approach
[1] Beks JW, Bouma GJ, Journee HL. Tumours of the thalamic region. A retrospective study of 27 cases [J]. Acta Neurochir (Wien), 1987, 85(3-4):125-127.
[2] Yasargil MG. Microneurosurgery, vol 4B [M]. Thieme, Stuttgart, 1996:29-91, 252-312, 291-342.
[3] Nishio S, Moriota T, Suzuki S, et al. Thalamic gliomas: a clinicopathologic analysis of 20 cases with reference to patient age [J]. Acta Neurochir(Wien), 1997, 39(4): 336-342.
[4] Cuccia V, Monges J. Thalamic tumors in children [J]. Childs Nerv Syst, 1997, 13(10):514-520.
[5] Vajda J. Thalamic tumors in children [J]. Childs Nerv Syst, 1998, 14(8):349.
[6] Ozek MM, Ture U. Surgical approach to thalamic tumors [J]. Childs Nerv Syst, 2002, 18(8):450-456.
[7] Witelson SF. Hand and sex differences in the isthmus and genu of the human corpus callosum. A postmortem morphological study [J]. Brain,1989, 112 ( Pt 3):799-835.
[8] Siwanuwatn R, Deshmukh P, Feiz-Erfan I, et al. Microsurgical anatomy of the transcallosal anterior interforniceal approach to the third ventricle [J]. Neurosurgery, 2005, 56(2 Suppl): 390-396.
[9] Winkler PA, Ilmberger J, Krishnan KG, et al. Transcallosal interforniceal-transforaminal approach for removing lesions occupying the third ventricular space: clinical and neuropsychological results [J]. Neurosurgery, 2000, 46(4):879-890.
[10] Rhoton AL Jr. The lateral and third ventricles [J]. Neurosurgery, 2002, 51(4 Suppl): S207-271.
[11] Ribas GC, Yasuda A, Ribas EC, et al. Surgical anatomy of microneurosurgical sulcal key points [J]. Neurosurgery, 2006, 59(4 Suppl 2): ONS177-210.
[12] Sayhan S, Guvencer M, Ozer E, et al. Morphometric evaluation of parasagittal venous anatomy for intracranial approaches: a cadaveric study [J]. Turk Neurosurg, 2012, 22(5):540-546.
[13] Giedd JN, Blumenthal J, Jeffries NO, et al. Brain development during childhood and adolescence: a longitudinal MRI study [J]. Nat Neurosci, 1999, 2(10): 861- 863.
[14] 古爱平, 邹艳, 蔡军, 等. 正常人不同年龄群胼胝体的MRI研究[J]. 解剖学研究, 2009, 31(3): 188-193.
[15] Yasargil MG, Abdulrauf SI. Surgery of intraventricular tumors [J]. Neurosurgery, 2008, 62(6 Suppl 3):1029-1040.
[16] Wang S, Salma A, Ammirati M. Posterior interhemispheric transfalx transprecuneus approach to the atrium of the lateral ventricle: a cadaveric study [J]. J Neurosurg, 2010, 113(5):949-954.
[17] Mahaney KB, Abdulrauf SI. Anatomic relationship of the optic radiations to the atrium of the lateral ventricle: description of a novel entry point to the trigone. Neurosurgery, 2008, 63(4 Suppl 2):195-202.
[18] Lawton MT, Golfinos JC, Spetzler RF. The contralateral transcallosal approach: experience with 32 patients [J].Neurosurgery,1996, 39(4):729-735.
[19] Ng YT, Rekate HL, Kerrigan JF, et a1.Transcallosal resection of hypothalamic hamartoma: case report [J]. Barrow Quarterly, 2004, 20:13-17.
[20] Kasowski H, Piepmeier JM. Transcallosal approach for tumors of the lateral and third ventricles [J]. Neurosurg Focus, 2001, 10(6):E3.
[21] Nishizaki T, Ikeda N, Nakano S, et al. Occipital inter-hemispheric approach for lateral ventricular trigone meningioma [J]. Acta Neurochir (Wien), 2009, 151(12): 1717-1721.
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