Power spectrum entropy of acceleration time-series during movement as an indicator of smoothness of movement.

We propose a novel indicator for smoothness of movement, i.e., the power spectrum entropy of the acceleration time-series, and compare it with conventional indices of smoothness.

[A case of primary pulmonary cavitation with thin smooth walls in sarcoidosis].

A 27-year-old female was admitted to our hospital after a regular medical check revealed BHL and cavitation in the right upper lung field on a chest radiograph. Ga scintigraphy showed abnormal uptake bilaterally in the mediastinal and hilar lymph nodes. We strongly suspected lung sarcoidosis, then performed TBLB and BAL.