Localization Diagnosis Value Of Fusion Imaging Technology For Conventional Ultrasonic Diagnosis Difficult Focal Liver Lesion

Background Along with our country the development of the society and medical level is increasing day by day, various kinds of advanced large imaging equipment is widely used in clinical work, which can provide all kinds of objective image information advantage makes it play an increasingly important role in the clinical work, with the wide application of a variety of imaging devices, however, its shortcomings are also more and more exposed. For example:ultrasound is easy to operate, strong real-time performance, and economical, but its low spatial resolution, and susceptible to pulmonary, the limited use of bowel gas and other interference makes it; MR can provide more diagnostic information, but its cost is high, check a long time; Layer computer imaging spatial resolution is high, the bony structure imaging is clear, but its radiation dose, and real-time performance. PET imaging has its unique energy advantages, but its are also expensive, has the disadvantages such as radiation damage. As a kind of aims to integrate a variety of image fusion imaging equipment advantages, the CT/MR image and real-time ultrasound image fusion technology, more and more attention by people, it is worth studying in the actual clinical application value.Objective To evaluate the localization diagnosis value of fusion imaging technology for focal liver lesion which is difficult to diagnose by conventional ultrasound and the independent factors affecting lesion detection.Methods There are 52 focal liver lesions which are all clearly revealed by CT/MR, but not showed in conventional ultrasound. A, B are two ultrasound doctors who have different experience. They scan all the lesions with conventional ultrasound and the fusion imaging technology respectively, then record and calculate the detection rate of each way. On CT/MR image measurement and statistics of a, b two men has detected lesions of length to diameter and distance between the surface depth, and other lesions could be length to diameter and the depth from the body surface.Results The detection rate of conventional ultrasound is 11.54%(6/52),3.85%(2/52) respectively.The detection rate of fusion imaging is 59.62%(31/52),48.08%(25/52) respectively.When A, B used the same method, the difference of detection rate has no statistical significance (P> 0.05). When they used different methods, the difference of detection rate has statistical significance (P< 0.05). What’s more, the detection rate of fusion imaging technology is much higher than conventional ultrasound. Group did not check out the focal length to diameter (1.26±0.59)cm, the depth of the lesion (6.3±2.1)cm, group can be checked out the focal length to diameter (1.45±0.67)cm, the depth of the lesion (5.4±1.3)cm. No detection of lesions and lesions can be detected between the comparison of length to diameter and depth, there was no statistically significant difference (P> 0.05). The length to diameter and depth of the lesion is not considered to be the independent factors affecting lesion detection.Conclusion The fusion imaging technology can improve the detection ability for focal liver lesions which are difficult to reveal by conventional ultrasound.