الفهرس 
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Abstract
3D ultrasonography is a recently developed sonographic modality that may improve the diagnostic capability of sonography in diagnosing GB diseases. So, this study aims to demonstrate the GB by using such recent technology namely, 3D sonography. This study included 60 patients (34 females and 26 males) complaining of symptoms suspected to be related to GB diseases. Their ages ranged from 24 to 68 years with the mean age of 44 years. All cases were subjected to full clinical examination. Then all patients underwent 2D and 3D ultrasonographic examination with 2 to 5 MHz conventional transducer and 4 to 7 MHz 3D convex volume transducer respectively using the same ultrasonographic equipment. The 60 patients in this study were classified into five groups according to the ultrasonographic findings: <U+2022> The first group included 25 patients with gallstones. <U+2022> The second group included 16 patients with polypoid lesions. <U+2022> The third group included 6 patients with GB carcinoma. <U+2022> The fourth group included 8 patients with GB congenital anomalies. <U+2022> The fifth group included 5 patients with miscellaneous GB disorders (e.g. varices, worm). from our results we find that, application of 3D technology optimizes the visualization of GB morphology. As regard gallstones, apart from being visualized more plastically and objectively, 3D sonography adds no advantages for diagnosis compared with 2D sonography. In GB polypoid lesions 3D sonography has higher ability than 2D for distinguishing its morphological features. In cases of GB carcinomas 3D sonography could improve the localization and staging of the tumors. However, 3D sonography has the disadvantages of motion artifacts and long examination time. In conclusion, 3D sonography can act as adjunct to 2D sonography allowing depiction of normal and abnormal structures in previously unattainable planes and thus improving its diagnostic capability, facilitating the diagnosis and increasing the operator diagnostic confidence. However 3D can not take place of 2D at least for the fore seeable future.