[Examination of Gd-EOB-DTPA Liver Dynamic Contrast-enhanced MRI Using Radial VIBE with k-space Weighted Image Contrast Method]
| Autor: | Naomichi Tamaru, Yoshihiro Kitoh, Tosiaki Miyati, Yasunari Fujinaga |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Gadolinium DTPA
Materials science Phase (waves) Gd-EOB-DTPA Contrast Media k-space General Medicine Image Enhancement Signal Magnetic Resonance Imaging Image contrast 030218 nuclear medicine & medical imaging 03 medical and health sciences 0302 clinical medicine Nuclear magnetic resonance Liver Magnetic imaging 030220 oncology & carcinogenesis Temporal resolution Dynamic contrast-enhanced MRI Artifacts |
| Zdroj: | Nihon Hoshasen Gijutsu Gakkai zasshi. 76(3) |
| ISSN: | 0369-4305 |
| Popis: | Dynamic contrast-enhanced magnetic imaging (DCE-MRI) is a useful method for detection and diagnosis of liver lesions. However, DCE-MRI using Gd-EOB-DTPA has some problems with arterial phase images. Radial volumetric imaging breath-holding examination (r-VIBE) with k-space weighted image contrast reconstruction (KWIC), which is a modification of Cartesian VIBE (c-VIBE), is a new 3D-gradient echo sequence with a number of advantages compared with c-VIBE, including lower motion sensitivity. This study was performed to evaluate image contrast, blurring, and temporal phase division effects of r-VIBE in comparison with c-VIBE. Image contrast using diluted Gd-EOB-DTPA aqueous solution showed no significant difference between r-VIBE and c-VIBE. Imaging was performed with r-VIBE and c-VIBE during injection of a Gd-EOB-DTPA solution into a serpentine tube. r-VIBE showed a smaller half-width of the signal intensity profile of the tube and less image artifacts by blurring when compared to c-VIBE. The arrival times and durations of the maximum signal strengths of r-VIBE and c-VIBE images during injection of Gd-EOB-DTPA solution into the tube were almost identical. r-VIBE improved the temporal resolution without degradation of liver DCE-MRI using Gd-EOB-DTPA. |
| Databáze: | OpenAIRE |
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