RESUMO
The immediate goal of this study was to develop and validate a noninvasive, computational surface mapping approach for measuring scapular kinematics by using available motion capture technology in an innovative manner. The long-term goal is to facilitate clinical determination of the role of the scapula in children with brachial plexus birth palsy (BPBP). The population for this study consisted of fourteen healthy adults with prominent scapulae. Subject-specific scapular templates were created using the coordinates of five scapular landmarks obtained from palpation with subjects seated and arms relaxed in a neutral position. The scapular landmarks were re-palpated and their locations recorded in the six arm positions of the modified Mallet classification. The six Mallet positions were repeated with approximately 300 markers covering the scapula. The markers formed a surface map covering the tissue over the scapula. The scapular template created in the neutral position was iteratively fit to the surface map of each trial, providing an estimate of the orientation of the scapula. These estimates of scapular orientation were compared to the known scapular orientation determined from the scapular landmarks palpated in each Mallet position. The magnitude of the largest mean difference about an anatomical axis between the two measures of scapular orientation was 3.8° with an RMS error of 5.9°. This technique is practical for populations with visibly prominent scapulae (e.g., BPBP patients), for which it is a viable alternative to existing clinical methods with comparable accuracy.
Assuntos
Neuropatias do Plexo Braquial , Modelos Biológicos , Movimento , Amplitude de Movimento Articular , Escápula/fisiopatologia , Adulto , Fenômenos Biomecânicos , Neuropatias do Plexo Braquial/diagnóstico , Neuropatias do Plexo Braquial/patologia , Neuropatias do Plexo Braquial/fisiopatologia , Criança , Pré-Escolar , Feminino , Humanos , Lactente , Recém-Nascido , MasculinoRESUMO
We studied patients with non-specific urethritis and control subjects at our dispensary. These patients and controls were matched for age, rank and sexual activity, and studied for the presence of bacteria, virus, Trichomonas and Mycoplasma. No significant bacteria were found in either group. No Trichomonas was identified, only 1 herpes II was recovered and no cytomegalovirus was found. Mycoplasma were cultured from patients and controls. The rate of colonization varied, depending upon several factors, but the significant factors seemed to be associated with the number of sexual partners. Those men with more than 1 sexual partner had a significantly increased colonization with Mycoplasma.
Assuntos
Medicina Naval , Uretrite/etiologia , Adolescente , Adulto , Feminino , Humanos , Masculino , Infecções por Mycoplasma , Comportamento Sexual , Fatores Socioeconômicos , Estados Unidos , Uretrite/microbiologiaRESUMO
The enzym-linked immunosorbent assay (ELISA) was compared with the microcomplement-fixation test for sensitivity and reliability in detection of antibody to soluble antigen of Epstein-Barr virus. ELISA was found to be more sensitive (up to 160 times more antibody) in detecting levels of antibody than the complement-fixation assay. The ELISA test was shown also to be comparably reliable to the complement-fixation assay in detecting immunity to this antigen; only one false-positive response was found in tests of 21 sera. Because this assay is completely quantifiable, it provides an easy, rapid, and highly sensitive technique for the detection of antibody to antigen of Epstein-Barr virus.
