title: Precordial monitoring of pulmonary gas embolism and decompression bubbles.
mesh_terms: D000531:Altitude; D001274:Atmospheric Pressure; D003665:Decompression Sickness / Q000517:prevention & control; D004242:Diving; D004618:Embolism, Air / Q000175:diagnosis*; D006801:Humans; D008991:Monitoring, Physiologic; D011655:Pulmonary Embolism / Q000175:diagnosis*; D014159:Transducers / Q000295:instrumentation; D014465:Ultrasonics / Q000295:instrumentation*