Combined Use of Stereotactic Ct and Angiography for Brain Biopsy and Stereotactic Irradiation

Gahbauer, H; Kaick, G. van; Netzeband, G.; Pastyr, O.; Scharfenberǵ, H.; Scheer, K. E.; Schlegel, Wolfgang; Sturm, Volker; Zabel, H.-J.

doi:10.1097/00004728-198302000-00132

Cited by 4 publications

(3 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The hardware and software components used in the treatment planning and irradiation procedures have been published 9–16. Figure 1 shows an example of a treatment plan.…”

Section: Methodsmentioning

confidence: 99%

Stereotactic linear accelerater‐based radiosurgery for the treatment of patients with glomus jugulare tumors

Maarouf

Voges

Landwehr

et al. 2003

Cancer

View full text Add to dashboard Cite

Activated layered double hydroxides (LDHs) with high crystallinity, obtained by calcination/rehydration of LDH precursors synthesized by urea decomposition, have higher catalytic activity in acetone self‐condensation and Knoevenagel reactions than less crystalline materials obtained from LDH precursors synthesized by titration co‐precipitation. The activated LDHs possess both basic and acidic sites. High resolution transmission electron microscopy (HRTEM) confirms that the highly crystalline activated LDHs retain the lattice structure of the LDH precursors with lattice parameters a = b = 0.31 ± 0.01 nm and α = 60 ± 2°. An acid‐base catalytic mechanism has been proposed to interpret the catalytic behavior based on the fact that acid‐base hydroxyl group pairs on the activated LDH surface have a separation of 0.31 nm. It is proposed that the active sites are mainly located on the ordered array of hydroxyl sites on the basal surfaces rather than on the edges, as has been previously suggested. © 2007 American Institute of Chemical Engineers AIChE J, 2007

show abstract

“…The hardware and software components used in the treatment planning and irradiation procedures have been published 9–16. Figure 1 shows an example of a treatment plan.…”

Section: Methodsmentioning

confidence: 99%

Stereotactic linear accelerater‐based radiosurgery for the treatment of patients with glomus jugulare tumors

Maarouf

Voges

Landwehr

et al. 2003

Cancer

View full text Add to dashboard Cite

show abstract

“…The superior results of intracavitary irradiation reported by Backlund and co-workers [1,2], Strauss et al [9], Szikla et al [ 10], and others [3][4][5] have been neglected in favor of attempted radical resection by craniot omy. The long-term results of radical craniopharyngioma surgery have been discouraging, and increasingly radiation therapy has been advo cated to improve postoperative longevity and intellectual and endo crinological function.…”

mentioning

confidence: 99%

Stereotactic Intracavitary Irradiation of Cystic Neoplasms of the Brain

Lunsford

Gumerman

Levine

1985

Stereotact Funct Neurosurg

View full text Add to dashboard Cite

Ten patients with intracranial cystic tumors underwent stereotactic intracavitary irradiation using ³²P colloidal chromic phosphate. Accurate dosimetry (25,000–30,000 rad to the cast wall) was achieved by volume estimation using computed tomography. Between 1 and 15 months after surgery both craniopharyngioma and astrocytoma cysts regressed. Neurological, visual, and endocrinological deficits either stabilized or improved. Intracavitary irradiation should be the primary method of treating solitary cystic tumors of the brain.

show abstract

“…The possibilities and limitations of the intracavitary implantation of radioisotopes into craniopharyngioma cysts have been documented in the last two decades. [3,8,13,17,33] Radioisotopes emitting short-range beta radiation and with a short half-life Na 32 [4,6,12,21,23] 90 YCl 3 , [7] and later with 90 Y-silicate colloid [2,3,10,[15][16][17][18][19]24,27,34,35,38,44,52] or 186 rhenium [34][35][36]43,48,52] have all been used.…”

Section: Discussionmentioning

confidence: 99%

Treatment of cystic craniopharyngiomas with yttrium-90 colloid solution.

Degnan

1997

FOC

View full text Add to dashboard Cite

The authors analyzed long-term follow-up data to assess the value of intracavitary irradiation with stereotactically implanted beta-emitting radioisotope 90Y-silicate colloid for the treatment of craniopharyngiomas. Fifty-seven craniopharyngiomas in 42 patients were selected for retrospective analysis. The yttrium-90 was implanted intracavitally, using computerized tomography-guided and three-dimensional stereotactic treatment planning. The cumulative dose aimed at the inner surface of the cyst wall was 300 Gy. An average of 75% shrinkage of the initial cyst volume was observed. In 18 cases the reduction was more than 91%, and the cyst disappeared totally in 11 cases. A 50% decrease in cyst volume was usually apparent between the 2nd and 4th months. A 70% decrease in cyst volume was seen by the 5th and 6th months and an 80% reduction by the 7th and 8th months. Cysts that were unchanged remained so throughout the observation period. The time course of volume reduction could be expressed mathematically by the formula of 0.73 X e-0.62 X T + 0.27, where “e” is the basic number of natural logarithm and “T” is the time expressed in months. Mean survival duration after intracavitary irradiation was 9.4 years. The shrinkage of the cyst was a consequence of fibrosis of the wall, as seen on histopathological examination. The neuroophthalmological prognosis was favorable only when the optic disc was normal or nearly normal at the time of the treatment. In the presence of preexisting optic atrophy, visual deterioration proved to be irreversible. The long-term results support the view that intracavitary90Y-irradiation is a noninvasive and very effective method of treatment for craniopharyngioma cysts. Because of the 1.1 mm half-life decay of beta irradiation, it cannot influence the solid part of the tumor; therefore, the best result can be expected in solitary cysts.

show abstract

Combined Use of Stereotactic Ct and Angiography for Brain Biopsy and Stereotactic Irradiation

Cited by 4 publications

References 0 publications

Stereotactic linear accelerater‐based radiosurgery for the treatment of patients with glomus jugulare tumors

Stereotactic linear accelerater‐based radiosurgery for the treatment of patients with glomus jugulare tumors

Stereotactic Intracavitary Irradiation of Cystic Neoplasms of the Brain

Treatment of cystic craniopharyngiomas with yttrium-90 colloid solution.

Contact Info

Product

Resources

About