摘要:

ABSTRACT.We report the occurrence of a breach activity related to an osteolytic skull metastasis from an adenocarcinoma of the breast. A skull x-ray with retained electrodes identified the relationship of the focal high amplitude beta activity to a lytic lesion in the right parietal bone. Breach activity related to a skull bone metastasis has not been previously described, and has not to our knowledge been reported with lesions other than surgical and traumatic skull defects. The finding of an asymmetry in amplitude of the EEG activity in a patient with no antecedent history of head injury or neurosurgical intervention should raise suspicions of other skull bone defects which may result in a breach activity.

ISSN:0002-9238    

DOI:10.1080/00029238.1994.11080466

出版商:Taylor&Francis    

年代:1994

数据来源: Taylor

摘要:

ABSTRACT:Cellular telephones are becoming increasingly common; their small size and portability means that they may be unrevealed when a patient has an EEG. They contain radio-frequency receivers and transmitters, and may produce EEG artifacts by several mechanisms. We have ascertained three patterns of EEG artifact that may be generated by cellular telephones: an“autonomous registration”artifact that may occur with the telephone turned on, but not otherwise being used, and“sending”and“receiving”artifacts which may be seen with use of the cellular telephone. The artifacts have a characteristic appearance. Awareness of these artifacts should prompt the technologist to determine if a cellular telephone is present in or near the recording room.

ISSN:0002-9238    

DOI:10.1080/00029238.1994.11080467

出版商:Taylor&Francis    

年代:1994

数据来源: Taylor

摘要:

ABSTRACT.Long-term EEG/videomonitoring (LTM) is an essential diagnostic procedure of clinical neurology and neurosurgery, but LTM is technically demanding. The traditional hierarchical system of EEG laboratory management is poorly suited to performance of LTM. We designed a system in which one EEG technologist takes primary responsibility for performing LTM for one patient. This primary technologist performs most aspects of a patient's LTM and integrates the technical components of LTM into a complete procedure. When problems arise, the primary technologist organizes solutions with the assistance of the other technologists, physicians, nurses, and electrical engineers. Following institution of this sytem in our laboratory, measurable improvements in quality and productivity and in patient and professional satisfaction have occurred.

ISSN:0002-9238    

DOI:10.1080/00029238.1994.11080468

出版商:Taylor&Francis    

年代:1994

数据来源: Taylor

摘要:

ABSTRACT.Somatosensory evoked potentials are becoming one of the major work products of the modern multimodality clinical neurophysiology laboratory, driven particularly by the demand for preoperative and operative monitoring. These studies, technically difficult to begin with, are further complicated by the needs and effects of the surgery and anesthesia. This article reviews the problems and artifacts that the technologist may encounter during clinical diagnostic, preoperative, and intraoperative evoked potential studies, as well as some of the hazards unique to the intra-operative study.

ISSN:0002-9238    

DOI:10.1080/00029238.1994.11080469

出版商:Taylor&Francis    

年代:1994

数据来源: Taylor

ISSN:0002-9238    

DOI:10.1080/00029238.1994.11080470

出版商:Taylor&Francis    

年代:1994

数据来源: Taylor

ISSN:0002-9238    

DOI:10.1080/00029238.1994.11080471

出版商:Taylor&Francis    

年代:1994

数据来源: Taylor

ISSN:0002-9238    

DOI:10.1080/00029238.1994.11080472

出版商:Taylor&Francis    

年代:1994

数据来源: Taylor