The present invention relates to a primary radiation shield using a contrast medium, wherein a shield made of a contrast medium capable of shielding radiation, which is not lead, can be used to effectively protect the patients superficial organs that are highly sensitive to radiation, such as female breasts, thyroid glands, crystalline lenses, or sexual glands, during a medical imaging examination such ascomputed tomography examination, normal imaging examination, or tomography examination streak artifact (difficulty in reading images due to artifacts resulting from a difference in radiation absorption ratio) images are minimized, thereby enabling accurate reading the contrast medium pad has a core material and a film material provided inside and outside the same in a twofold manner so as to prevent deformation, for example, bending of part thereof due to curvature of the human body and the contrast medium further comprises a hardening agent, such as gelatin, such that, even when positioned on a curved surface of the human body, a constant thickness can be maintained. A primary radiation shield using a contrast medium according to a preferred embodiment of the present invention is characterized by comprising: a contrast medium pad filled with a contrast medium an interval maintaining member attached to the bottom surface of the contrast medium pad so as to space the contrast medium pad from a human body part by a predetermined interval and an adhesive means provided on the bottom surface of the interval maintaining member such that the interval maintaining member is positioned/retained on the human body.La présente invention concerne un écran anti-rayonnement primaire utilisant un milieu de contraste, un écran constitué dun milieu de contraste étant apte à protéger de lexposition à un rayonnement, qui nest pas conducteur, peut être utilisé pour protéger efficacement les organes superficiels dun patient qui sont fortement sensibles au rayonnement, tels que les seins
