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Moreover, these changes are often increased in both frequency and severity when cranial irradiation is combined with the use of systemic or intrathecal chemotherapy. Approaches to preventing or reducing this toxicity include the use of stereotactic radiosurgery (SRS) instead of WBRT; dose reduction for PCI; exclusion of the limbic circuit, hippocampal formation, and\/or neural stem cell regions of the brain during radiotherapy; avoidance of intrathecal and\/or systemic chemotherapy during radiotherapy; the use of high-dose, systemic chemotherapy in lieu of WBRT. This review discusses these concepts in detail as well as providing both neuroanatomic and radiobiologic background relevant to these issues.<\/jats:p>","DOI":"10.1155\/2010\/198208","type":"journal-article","created":{"date-parts":[[2010,6,27]],"date-time":"2010-06-27T10:35:44Z","timestamp":1277634944000},"page":"1-16","source":"Crossref","is-referenced-by-count":54,"title":["Cognitive Sparing during the Administration of Whole Brain Radiotherapy and Prophylactic Cranial Irradiation: Current Concepts and Approaches"],"prefix":"10.1155","volume":"2010","author":[{"given":"James C.","family":"Marsh","sequence":"first","affiliation":[{"name":"Department of Radiation Oncology, Rush University Medical Center, Chicago, IL 60612, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benjamin T.","family":"Gielda","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, Rush University Medical Center, Chicago, IL 60612, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Arnold M.","family":"Herskovic","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, Rush University Medical Center, Chicago, IL 60612, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ross A.","family":"Abrams","sequence":"additional","affiliation":[{"name":"Department of Radiation Oncology, Rush University Medical Center, Chicago, IL 60612, USA"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"98","reference":[{"key":"1","doi-asserted-by":"publisher","DOI":"10.1227\/01.NEU.0000182739.84734.6E"},{"key":"2","doi-asserted-by":"publisher","DOI":"10.1227\/01.NEU.0000182742.40978.E7"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1007\/s11864-006-0023-8"},{"key":"4","volume":"3","year":"2006","journal-title":"Cochrane Database of Systematic Reviews"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1016\/S0360-3016(96)00619-0"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1016\/S0360-3016(99)00198-4"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1001\/jama.280.17.1485"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(04)16250-8"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1016\/S0360-3016(02)02770-0"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1016\/0360-3016(94)00550-8"},{"issue":"6","key":"11","doi-asserted-by":"crossref","first-page":"789","DOI":"10.1212\/WNL.39.6.789","volume":"39","year":"1989","journal-title":"Neurology"},{"key":"12","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijrobp.2007.09.059"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijrobp.2008.03.009"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1097\/00000421-200010000-00011"},{"issue":"8","key":"15","doi-asserted-by":"crossref","first-page":"2302","DOI":"10.1200\/JCO.2001.19.8.2302","volume":"19","year":"2001","journal-title":"Journal of Clinical Oncology"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1159\/000111809"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.1200\/JCO.2006.06.6910"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijrobp.2005.03.030"},{"issue":"9","key":"19","doi-asserted-by":"crossref","first-page":"2700","DOI":"10.1200\/JCO.1999.17.9.2700","volume":"17","year":"1999","journal-title":"Journal of Clinical Oncology"},{"key":"20","doi-asserted-by":"publisher","DOI":"10.1016\/S0169-5002(03)00305-2"},{"key":"21","doi-asserted-by":"publisher","DOI":"10.1200\/JCO.2007.12.5468"},{"key":"22","doi-asserted-by":"publisher","DOI":"10.1159\/000201933"},{"issue":"8","key":"23","first-page":"625","volume":"3","year":"2005","journal-title":"Clinical Advances in Hematology and Oncology"},{"key":"25","doi-asserted-by":"publisher","DOI":"10.1378\/chest.07-1384"},{"key":"26","doi-asserted-by":"publisher","DOI":"10.1016\/S1470-2045(09)70101-9"},{"key":"27","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199908123410703"},{"key":"28","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa071780"},{"issue":"3","key":"29","doi-asserted-by":"crossref","first-page":"183","DOI":"10.1093\/jnci\/87.3.183","volume":"87","year":"1995","journal-title":"Journal of the National Cancer Institute"},{"key":"30","doi-asserted-by":"publisher","DOI":"10.1200\/JCO.2008.17.0746"},{"key":"31","first-page":"142","year":"2006","journal-title":"Hematology. 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