The present invention relates to a method for image compression and pre-diagnosis in a three-dimensional remote ultrasound diagnostic apparatus, and more particularly, to a method for determining normality or abnormality by analyzing data features after compression wherein lossy compression or lossless compression takes place in accordance with the communication circumstances of a data transmission unit in a three-dimensional ultrasound diagnostic apparatus capable of remote diagnosis. The method for image compression and pre-diagnosis in a three-dimensional remote ultrasound diagnostic apparatus has technical characteristics including: a first step in which a processing unit combines two-dimensional images scanned by a scan unit in order to generate a three-dimensional volume image a second step of selecting a compression scheme for the three-dimensional volume image and compressing the three-dimensional volume image using the selected compression scheme a third step of storing the compressed three-dimensional volume image in a database unit a fourth step of pre-diagnosing abnormal three-dimensional volume images from among the stored three-dimensional volume images and a fifth step in which a data transmitting unit transmits the abnormal three-dimensional volume image to a hospital capable of diagnosing the abnormality.La présente invention a trait à un procédé destiné à la compression dimages ainsi quau pré-diagnostic dans un appareil de diagnostic par ultrasons tridimensionnel à distance, et plus particulièrement à un procédé permettant de déterminer la normalité ou lanormalité grâce à lanalyse déléments de données après la compression, qui peut être une compression avec perte ou une compression sans perte suivant la situation de communication dune unité de transmission de données dans un appareil de diagnostic par ultrasons tridimensionnel pouvant réaliser un diagnostic à distance. Les caractéristiques techniques dudit procédé destiné à la compression dimages e