| Objective: Through this research, TO analyze multi-slice spiral CT imaging performance of the renal cell carcinoma and explore the imaging of CT differential diagnosis between small cell carcinoma and the other disease. After tracking, with pathology, to analyze the correlation of CT and pathological manifestation of small renal cell carcinoma.Materials and Methods:1. To analyze retrospectively suspected cases of kidney small footprint 128 cases which inspected in the in the First Affiliated Hospital of the University of Jiamusi in May 2006 to December 2007 period, they all had been carried out with renal CT and made diagnosis. Choose 30 cases of patients with small renal cell carcinoma observed CT scan density by the CT diagnosis and postoperative pathology confirmation. To observe tumor cell type, cell arrangement, internal structure and so on. Comprised between CT and pathologic manifestations, To study CT enhanced degree in histological types. More than 98 cases of all the CT diagnosis and clinical consultation to be, and are grouped under the lesion of renal angiomyolipoma, renal cysts and other small space-occupying lesions2. Inspection Methods: Using multi-phase scanning with Siemens SOMATOM 64-slice CT system. Scanning parameters: Tube voltage120KV,Effective tube current 900mAs, Collimation 64×0.6mm,The time of tube rotating 0.33s.Using interesting region CT number blous tracking , District first plane in renal abdominal aorta plane select interest areas contrast injection after 10s interest in monitoring changes in density, CT value when interest areas increased by 100HU. An edge - Contrast Agent is used with 300mgl/ml, Total injection with 100ml, Injection rate by 5ml/s, to inject with the same rate of 50ml saline Subsequently. breath-hold time of the subjects is 10 to 12s. After scanning, to reconstruct phase with previewed option, reconstructed thickness by 0.75 mm, reconstructed interval by 0.5 mm, Reconstructed method by Kernel value B25f smooth + +. reconstructed Imaging which is in the "communication" (syngo) workstation applications multiplanar reconstruction.3.Strengthen standards: CT value difference between 0 to 10 HU was not strengthened, and mildly enhanced 11 to 20 HU was significantly enhanced more 20 HU, and evaluation.The imaging were diagnosised and analyzed by two physicians unknowed. Results: The small experimental imaging patients with renal cell carcinoma through the correct diagnosis of 30 cases, all confirmed by surgery and pathology. In the correct diagnosis of 30 cases of small cell carcinoma pathology report, see the most transparent cell carcinoma, a total of 23 cases, seventy six point six of the total. Granulosa cell cancer four cases, three cases of mixed cell carcinoma. Are unilateral. After intravenous injection of contrast medium, and 25 cases of significantly strengthening for the rich blood supply, of which 22 are for real cells, rich sinusoids; 23 cases of lesions increased uneven. Small renal cell carcinoma can be plain low-density, density, high density, low density more.Enhanced features of a typical "fast into fast forward" feature in the cortex intensive Obviously, the declining in real terms. Multi-slice Spiral CT in kidney-shaped change, fake capsule, the capsule change, the diagnosis of hemorrhage important value and performance through CT and renal vascular smooth muscle lipoma, high-density small cysts, and other sexually transmitted diseases in disguise footprint identification.Conclusions:1.,Multi-phase imaging of multi-slice spiral CT for small renal cell carcinoma is importantant value to a qualitaty diagnosis and differential diagnosis.2.,Multi-slice Spiral CT in the detection of small renal cell carcinoma and high diagnostic accuracy, which is the imaging diagnosis of renal cell carcinoma must be one of the ways. 3.Small renal cell carcinoma of CT findings is relation with pathologic type and tumor structure. |
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