title: Validation of the smallest pocket echoscopic device's diagnostic capabilities in heart investigation.
abstract: We hypothesized that, based on greyscale imaging and color Doppler capabilities, a new pocket ultrasound device (PUD) could accurately record cardiologic diagnostic findings. One hundred patients referred for conventional clinical indications underwent a standard echocardiography. Subsequently, a second physician blinded to the results performed an evaluation using the PUD on the same patients. Study end-points were echocardiographic window quality; left ventricular (LV) morphology; function; hypertrophy; right ventricular, atrial and vena caval morphologies; aortic and mitral valvulopathies; and pericardial structure. Using a scale of three grades, concordance in image quality proved good with a kappa coefficient (κ) of 0.71. Concordances between systems were excellent for LV function and morphology (κ = 0.91 and 0.96). Concordance for LV hypertrophy was good (κ = 0.74). Concordances for mitral regurgitation grades were 0.90, 0.95 and 1.00, respectively. In conclusion, a new PUD enabled scanning examinations, which showed good concordance of basic and qualitative diagnostic capability to standard echocardiographic instruments.
authors: Cardiologic Hospital CHU Bordeaux, Bordeaux University, France.
authors: Stephane
authors: S
authors: Lafitte
authors: Nazim
authors: N
authors: Alimazighi
authors: Patricia
authors: P
authors: Reant
authors: Marina
authors: M
authors: Dijos
authors: Amira
authors: A
authors: Zaroui
authors: Aude
authors: A
authors: Mignot
authors: Marianne
authors: M
authors: Lafitte
authors: Xavier
authors: X
authors: Pillois
authors: Raymond
authors: R
authors: Roudaut
authors: Anthony
authors: A
authors: DeMaria
mesh_terms: D002318:Cardiovascular Diseases / Q000175:diagnosis*; D004452:Echocardiography / Q000295:instrumentation / Q000379:methods; D006321:Heart / Q000503:physiopathology*; D006801:Humans; D008904:Miniaturization