Inflammatory and Infectious Lesions Demyelinating Lesions Clinical Context The etiologies and patient characteristics associated with demyelinating lesions vary considerably. Most frequently encountered is the enigmatic autoimmune process of multiple sclerosis,…
Benign Cysts and Selected Developmental Anomalies Benign Endodermal Cysts (Rathke Cleft, Colloid, Enterogenous, Neurenteric, and Neuroepithelial Cysts) General Endodermal cysts are benign developmental lesions that contain epithelia resembling those derived…
Recording Artifacts and Solving Technical Problems with Polysomnography Technology James D. Geyer, MD Paul R. Carney, MD Artifacts in Polysomnography Recordings Loose Electrode Description: High-frequency noise superimposed on high-amplitude slow…
Technical Background James D. Geyer, MD Paul R. Carney, MD Introduction Polysomnography is the recording of multiple physiologic functions during sleep. Standard polysomnography usually includes the following variables: Electroencephalogram (EEG)…
Home Sleep Apnea Monitoring James D. Geyer, MD Paul R. Carney, MD FIGURE 12-1 HSAT: Standard montage; 30 second page. Clinical: 36-year-old overweight man with daytime sleepiness. Respiratory: Normal respirations…
Actigraphy James D. Geyer, MD Paul R. Carney, MD FIGURE 11-1 Actigraphy in a normal subject. Related posts: Limb Movement Disorders Breathing Disorders Parasomnias Calibrations Home Sleep Apnea Monitoring Technical…
Calibrations James D. Geyer, MD Paul R. Carney, MD FIGURE 10-1 Machine calibrations. FIGURE 10-2 Breath hold. FIGURE 10-3 Grit teeth. Related posts: Limb Movement Disorders Breathing Disorders Parasomnias Actigraphy…
EEG Abnormalities James D. Geyer, MD Paul R. Carney, MD FIGURE 7-1 Polysomnogram: Standard montage with intrathoracic pressure monitoring (prior display montage); 30 second page. Clinical: 29-year-old woman with complex…
