DIfferential Subsampling With Cartesian Ordering With Respiratory Triggering Versus Conventional Liver Acquisition With Volume Acquisition
| Autor: | Benjamin Wildman-Tobriner, Erol Bozdogan, Mustafa R. Bashir, Wendy L. Ehieli, James Ronald, Gemini Janas, Mohammad Chaudhry, Brian C. Allen |
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| Rok vydání: | 2019 |
| Předmět: |
Male
Image quality Digestive System Diseases Contrast Media Article Respiratory triggering 030218 nuclear medicine & medical imaging Breath Holding 03 medical and health sciences 0302 clinical medicine Precontrast Image Interpretation Computer-Assisted Health insurance Humans Medicine Radiology Nuclear Medicine and imaging Prospective Studies Aged Intravenous contrast business.industry Liver Diseases Middle Aged Magnetic Resonance Imaging Preference Liver Female Noise (video) business Nuclear medicine 030217 neurology & neurosurgery Volume (compression) |
| Zdroj: | J Comput Assist Tomogr |
| ISSN: | 0363-8715 |
| Popis: | OBJECTIVE The aim of this study was to compare respiratory-triggered DIfferential Subsampling with Cartesian Ordering (rtDISCO) and breath-held Liver Acquisition with Volume Acquisition (LAVA) image quality. METHODS In this institutional review board-approved, Health Insurance Portability and Accountability Act-compliant prospective study, 25 subjects underwent T1 imaging with rtDISCO and LAVA before and after intravenous contrast. Three readers scored individual series and side-by-side comparisons for motion and noise. Eight clinical tasks were qualitatively assessed. RESULTS As individual series, readers rated rtDISCO images as more degraded by motion on both precontrast (mean rtDISCO score, 2.7; LAVA, 1.6; P < 0.001) and postcontrast images (rtDISCO, 2.4; LAVA, 1.8; P < 0.001). Readers preferred LAVA images based on motion on both precontrast (mean preference, -1.2; P < 0.001) and postcontrast images (mean preference, -0.7; P < 0.001) on side-by-side assessment. There was no preference between sequences for 6 of 8 clinical tasks on postcontrast images. CONCLUSIONS Readers preferred LAVA with respect to motion but not noise; there was no preference in most of the tested clinical tasks. |
| Databáze: | OpenAIRE |
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