{"title":"Multiplanar CT-guided stereotaxis and 125I interstitial radiotherapy. Image-guided tumor volume assessment, planning, dosimetric calculations, stereotactic biopsy and implantation of removable catheters.","authors":"L Zamorano, M Dujovny, G Malik, D Yakar, B Mehta","doi":"","DOIUrl":"","url":null,"abstract":"<p><p>A method using Multiplanar CT-guided stereotactic biopsy and high-dose 125I interstitial radiotherapy in patients with malignant nonresectable or recurrent brain tumors is presented. Optimal interstitial radiotherapy requires careful preoperative planning, computer-assisted dosimetry, CT-guided stereotactic biopsy and implantation of catheters that will be loaded with 125I seeds. A method is presented by which the isodose curve distribution is adjusted to the tumor size, volume and axis, allowing treatment of the imaged and histologically determined border of the tumor with 60 Gy at a dose rate of 40 rad/h.</p>","PeriodicalId":75525,"journal":{"name":"Applied neurophysiology","volume":"50 1-6","pages":"281-6"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14458315","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
R Kuroda, J Nakatani, M Kitano, Y Yamada, A Yorimae
{"title":"Experimental anatomical considerations of the dorsal root entry zone lesions for pain relief.","authors":"R Kuroda, J Nakatani, M Kitano, Y Yamada, A Yorimae","doi":"10.1159/000100751","DOIUrl":"https://doi.org/10.1159/000100751","url":null,"abstract":"<p><p>Dorsal root entry zone (DREZ) lesions were made in the cervical dorsal horn in cat and monkey. Terminal degeneration was observed in the lateral cervical nucleus in cat and contralateral VPL in monkey by Fink-Heimer stain. WGA-HRP was injected in the cervical dorsal horn of cat and retrograde labelled cells were observed mainly in the raphe nucleus, parabrachial nucleus, locus coeruleus, Kölliker-Fuse nucleus, Eddinger-Westphal nucleus, and hypothalamic area, indicating that these descending fiber systems are involved by the DREZ lesion. The functional role of these fibers in regard to deafferentation pain relief seems now to be open to discussion.</p>","PeriodicalId":75525,"journal":{"name":"Applied neurophysiology","volume":"50 1-6","pages":"420-4"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000100751","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14261346","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Automatic calculation of epileptogenic focus location within the brain.","authors":"J L Barcia-Salorio, J A Barcia, J Ciudad, Y Such","doi":"10.1159/000100743","DOIUrl":"https://doi.org/10.1159/000100743","url":null,"abstract":"<p><p>The authors propose a hypothesis about the mathematical relationship between the position and intensity of epileptogenic discharge and the potential recorded from an electrocorticographic electrode. A computer program is used to solve the equation and to determine a small area of maximal probability for the focus to be found.</p>","PeriodicalId":75525,"journal":{"name":"Applied neurophysiology","volume":"50 1-6","pages":"374-9"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000100743","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14262877","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Transposition of target information from the magnetic resonance and computed tomography scan images to conventional X-ray stereotactic space.","authors":"A A De Salles, W T Asfora, M Abe, R N Kjellberg","doi":"10.1159/000100678","DOIUrl":"https://doi.org/10.1159/000100678","url":null,"abstract":"<p><p>A technique to apply reconstructed X-ray computed tomography (CT) and magnetic resonance imaging (MRI) for target determination in stereotactic Bragg peak proton beam therapy of intracranial lesions was developed. Twenty-one benign intracranial tumors and vascular abnormalities were managed using this technique. Clinical features of these lesions, as well as targeting problems associated with the MRI and CT image interpretation, are presented.</p>","PeriodicalId":75525,"journal":{"name":"Applied neurophysiology","volume":"50 1-6","pages":"23-32"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000100678","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"13973640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Electrophysiological and histological study of synaptic connections between lateral geniculate transplant and host visual cortex.","authors":"T Hamasaki, K Hirakawa, K Toyama","doi":"10.1159/000100767","DOIUrl":"https://doi.org/10.1159/000100767","url":null,"abstract":"<p><p>The lateral geniculate nucleus (LGN) of fetal Wistar rats was transplanted to the visual cortex (VC) of 33 neonatal Wistar rats. Histological examination showed transplanted cells in all the host brains. Intensively labeled cells were demonstrated in the transplant by labeling with true blue. Electrophysiological studies with brain slice preparations demonstrated that the transplanted LGN sent axons and made excitatory monosynaptic connections mainly in layer IV of the VC area 17. Corticogeniculate projections were also demonstrated in the transplanted LGN.</p>","PeriodicalId":75525,"journal":{"name":"Applied neurophysiology","volume":"50 1-6","pages":"463-4"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000100767","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14574119","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M R Dimitrijevic, J A Halter, P C Sharkey, A M Sherwood
{"title":"Epidural spinal cord stimulation and carry-over effect in chronic spinal cord injury patients.","authors":"M R Dimitrijevic, J A Halter, P C Sharkey, A M Sherwood","doi":"10.1159/000100761","DOIUrl":"https://doi.org/10.1159/000100761","url":null,"abstract":"","PeriodicalId":75525,"journal":{"name":"Applied neurophysiology","volume":"50 1-6","pages":"449-50"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000100761","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14626775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
W L Lanier, G J Hool, R J Faust, R F Cucchiara, P J Kelly
{"title":"Sedation for stereotactic headframe application: a randomized comparison of two techniques.","authors":"W L Lanier, G J Hool, R J Faust, R F Cucchiara, P J Kelly","doi":"10.1159/000100714","DOIUrl":"https://doi.org/10.1159/000100714","url":null,"abstract":"<p><p>A prospective, randomized study was performed in 87 patients to compare the safety, efficacy and dose requirements of two sedation techniques for stereotactic headframe application. Sedation administration and headframe application averaged 30 min. Fifty patients weighing 76 +/- 13 kg (mean +/- SD) received mean doses of 154 micrograms fentanyl plus 5.5 mg droperidol i.v. (FD group). An additional 37 patients weighing 76 +/- 19 kg received mean doses of 127 micrograms fentanyl plus 6.7 mg Valium (diazepam; FV group). Both treatments provided excellent hemodynamic stability and a low incidence of adverse side effects while providing adequate analgesia and sedation. The incidence of anesthetist-assessed patient anxiety and discomfort was more favorable in the FD group.</p>","PeriodicalId":75525,"journal":{"name":"Applied neurophysiology","volume":"50 1-6","pages":"227-32"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000100714","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14456252","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Combined use of a new target-centered arc system with the BRW floor stand and phantom base for a wider range of approaches and applications in stereotaxy of the head and neck.","authors":"E R Cosman, T H Wells","doi":"10.1159/000100695","DOIUrl":"https://doi.org/10.1159/000100695","url":null,"abstract":"<p><p>A unique target-centered arc system has been developed which combines the azimuth and declination angle approach concept of the standard BRW arc with the anteroposterior, lateral and vertical movements of the earlier Todd-Wells Guide for maximal versatility of image-guided stereotaxy. The arc system mounts on the BRW floor stand and provides completely unobstructed approaches to the upper hemisphere, base of the skull, posterior fossa or cervical region. It is ideally adapted for implant arrays and laser surgery. A new transferable phantom pointer affords target confirmation using the BRW phantom base.</p>","PeriodicalId":75525,"journal":{"name":"Applied neurophysiology","volume":"50 1-6","pages":"119-26"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000100695","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14457485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A Musolino, C Munari, S Fosse, S Blond, O Betti, C Daumas-Duport, J P Chodkiewicz
{"title":"Stereotactic aspiration of colloid cysts of the third ventricle. Preliminary report.","authors":"A Musolino, C Munari, S Fosse, S Blond, O Betti, C Daumas-Duport, J P Chodkiewicz","doi":"10.1159/000100801","DOIUrl":"https://doi.org/10.1159/000100801","url":null,"abstract":"<p><p>From January, 1979, to July, 1986, 10 patients (6 females, 4 males; 12-59 years, mean 37) with colloid cysts of the third ventricle were treated by stereotactic aspiration (Talairach's method). Five cysts have been completely aspirated. The mean residual volume of the other 5 was 19% of the initial volume. Clinical symptoms completely cleared in all but one patient. The advantages of the procedure are discussed.</p>","PeriodicalId":75525,"journal":{"name":"Applied neurophysiology","volume":"50 1-6","pages":"210-7"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000100801","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14456249","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Animal research stereotactic instrument modified for computed tomographic guidance.","authors":"R J Coffey, L D Lunsford","doi":"10.1159/000100689","DOIUrl":"https://doi.org/10.1159/000100689","url":null,"abstract":"<p><p>While target localization for human stereotactic surgery has been refined by computed tomographic (CT) and magnetic resonance imaging (MRI), stereotaxis in experimental animals has remained dependent upon external cranial landmarks and standardized atlas coordinates. To overcome the limitations and inaccuracies of animal devices using the original Horsley-Clarke method, we modified a standard animal stereotactic instrument in order to make target localization and coordinate determination possible with CT imaging. Although the device can be adapted to any medium-sized animal species, we demonstrate its use with dogs here.</p>","PeriodicalId":75525,"journal":{"name":"Applied neurophysiology","volume":"50 1-6","pages":"81-6"},"PeriodicalIF":0.0,"publicationDate":"1987-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1159/000100689","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"14455895","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}