A Clinical Study On Imaging Diagnosis Of Spinal Metastases

ObjectiveTo sum up the sensitivities of each imaging examination of spinal metastases, and sum up the primary lesions, the imaging manifestations and their correlations, so as to improve the diagnostic experience of spinal metastases and clarify the significance of imaging examination in the process of diagnosis and treatment.Methods: Retrospectively analyze all the cases whose final pathological diagnoses are spinal metastases(41 cases in all) with clinical data, imaging examination results and pathological results from October 2012 to January 2016 in our hospital.Results: In the cases of statistics, the positive rate of DR examination is 47.2%, CT examination with no enhancement, enhancement or three dimensional reconstruction and MRI examination is 100%, and ECT is 97.1%. The common primary lesions in spinal metastases are in accordance with lung cancer, breast cancer, prostate cancer and liver cancer, and osteolytic bone metastases are the most common. The common primary lesions of osteolytic bone metastases are in accordance with lung cancer, breast cancer and liver cancer, osteoblastic bone metastases are in accordance with lung cancer, prostate cancer and colorectal carcinoma, and uneven density of metastatic vertebral body are lung cancer. The common MRI plain scan manifestations of spinal metastases are T1 WI with hypointensity, STIR with hyperintensity, T2 WI with hypointensity, hyperintensity or mixed signals; osteolytic bone metastases are T1 WI with hypointensity, T2 WI with hyperintensity and STIR with hyperintensity; osteoblastic bone metastases are T1 WI with hypointensity, T2 WI with hypointensity and STIR with hyperintensity; and uneven density of metastatic vertebral body are T1 WI with hypointensity, T2 WI with mixed signals and STIR with hyperintensity or mixed signals. Statistical test shows that T2 WI signal intensities and metastases features have quite satisfied consistent degree in the case of T1 WI with hypointensity and STIR with hyperintensity.Conclusion: Imaging examinations have a great significance of spinal metastases in judging metastases properties such as osteolytic or osteoblastic metastases. It can provide important reference frames for formulating the sophisticated and dynamic therapeutic schemes, and we are expected to that imaging examination can play a key role in the MDT treatment model of spinal metastases.