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Wendell, this contrast sharply with studies that include "commercial" air divers who went to 200 feet. The other demarcation is bottom times - the long 100 foot working dives and any of the 200 range produced lesions. -----Original Message----- From: Wendell Grogan [mailto:wgrogan@dc*.ne*] Sent: Thursday, April 19, 2001 7:26 PM To: techdiver@aquanaut.com Subject: brain damage and divers Good news for those of us who never believed that the studies that suggested brain damage in divers were correct: 1: Acta Radiol 2000 Jan;41(1):18-21 Does diving damage the brain? MR control study of divers' central nervous system. Hutzelmann A, Tetzlaff K, Reuter M, Muller-Hulsbeck S, Heller M. Department of Diagnostic Radiology, Christian-Albrechts-University, Kiel, Germany. PURPOSE: To evaluate the prevalence of cerebral white matter changes on MR imaging in healthy elderly compressed air divers with a long diving history in comparison with control subjects who have never dived. MATERIAL AND METHODS: The investigation employed 59 experienced elderly divers and 48 control subjects matched for age, body mass index, alcohol and smoking history. MR studies included a fluid attenuated inversion recovery sequence and T1- and T2-weighted pre- and postcontrast images in axial orientation of the whole brain to localize white matter changes. RESULTS: MR images did not show any morphologic abnormalities in the brains of divers. Both groups - divers and controls - did not differ significantly with respect to white matter changes of the brain. CONCLUSION: No increased prevalence of cerebral white matter changes in compressed air divers compared with a healthy worker sample of similar age were found. Thus, extensive compressed air diving may not necessarily be related to radiological changes on MR. PMID: 10665864 [PubMed - indexed for MEDLINE] Wendell Grogan -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'. -- Send mail for the `techdiver' mailing list to `techdiver@aquanaut.com'. Send subscribe/unsubscribe requests to `techdiver-request@aquanaut.com'.
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