Dual Energy Spectral CT Imaging in the assessment of Gastric Cancer and cell proliferation: A Preliminary Study
| Autor: | Jianrong Xu, Hong-Xia Gong, Wei Ling, Lian-Ming Wu, Sai-Ming Cheng, Jiong Zhu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Adult
Male lcsh:Medicine Article 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Text mining Antigen Stomach Neoplasms medicine Image Processing Computer-Assisted Humans Prospective Studies lcsh:Science Prospective cohort study Rank correlation Aged Cell Proliferation Neoplasm Staging Aged 80 and over Multidisciplinary Chemistry Cell growth business.industry lcsh:R Cancer Middle Aged medicine.disease Early Gastric Cancer Ki-67 Antigen 030220 oncology & carcinogenesis Cancer research Biomarker (medicine) lcsh:Q Female business Tomography X-Ray Computed |
| Zdroj: | Scientific Reports Scientific Reports, Vol 8, Iss 1, Pp 1-7 (2018) |
| ISSN: | 2045-2322 |
| Popis: | Gastric cancer is one of the main diseases leading to cancer-related death. The recently introduced dual-energy spectral CT (DEsCT), allows to obtain many quantitative measurements from iodine-based material decomposition (MD) images, which contribute to improve the accuracy of staging of GC comparing to multidetector spiral CT. And Ki-67 is a well-recognized nuclear antigen-specific biomarker reflecting cellular proliferation for estimating growth fractions of various tumor types. In the present study we analyzed the features of quantitative measurements (the curve slope (λHU), IC, normalized iodine concentrations (NIC)) obtained from DEsCT and levels of Ki-67 protein expression. We demonstrated that the values between advanced gastric cancer (AGC) and early gastric cancer (EGC) were significantly different both in venous phase (VP) and delayed phase (DP). The values of different level of Ki-67 expression grade were significantly different both in VP and DP. The rank correlation analysis between Ki-67 grade and IC, NIC and λHU values showed significantly positive correlation in VP and DP. These results suggested that quantitative parameters (IC, NIC and λHU) in dual-energy CT imaging can be used to differentiate EGC from AGC, and have significantly positive correlation with Ki-67 antigen expression levels in gastric cancer for indicating tumor cellular proliferation. |
| Databáze: | OpenAIRE |
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