Fig. 1From: Infrared thermography for assessment of thoracic paravertebral block: a prospective observational studyA Anterior view of thoracic segments diagram, showing the representative rectangle areas (RAs) measured by infrared thermography. B thermographic image of a 41-yr-old male patient. (a) thermographic image before thoracic paravertebral block; (b) thermographic image at 15 min after thoracic paravertebral block. Grey arrow indicated the blocked sideBack to article page