Qualitative and Quantitative Assessment of Abdominal and Pelvic CT Image Quality Using Iopromide With Different Concentrations of Iodine (300 and 370 mg I/mL)
| Autor: | Weixia Chen, Kai Liao, Jia Bangsheng, Zhen-Lin Li, Lingling Qian, Bin Song, Tao Shuai, Li-Ping Deng, Kai Zhang |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Adult
Male medicine.medical_specialty Adolescent Image quality Iohexol medicine.medical_treatment chemistry.chemical_element Clinical settings Iodine Pelvis 030218 nuclear medicine & medical imaging Young Adult 03 medical and health sciences 0302 clinical medicine Abdomen medicine Quantitative assessment Humans Radiology Nuclear Medicine and imaging Tumor type Prospective Studies Child Saline Aged Aged 80 and over business.industry Iopromide Infant General Medicine Middle Aged Radiographic Image Enhancement chemistry Evaluation Studies as Topic Child Preschool 030220 oncology & carcinogenesis cardiovascular system Female Radiology Tomography X-Ray Computed Nuclear medicine business Body mass index medicine.drug |
| Zdroj: | American Journal of Roentgenology. 209:904-910 |
| ISSN: | 1546-3141 0361-803X |
| Popis: | The purpose of this study was to analyze the quality of MDCT images obtained using iopromide with two different concentrations of iodine (300 and 370 mg I/mL) in daily clinical settings.Patients from 38 hospitals in China undergoing abdominal or pelvic CT with iopromide were prospectively recruited. MDCT was performed using iopromide with an iodine concentration of 300 or 370 mg I/mL. CT quality image was graded as excellent, good, adequate, and poor. Objective indicators were the contrast-to-noise ratio (CNR) and signal-to-noise ratio (SNR). Outcomes were compared according to organ studied, tumor type (benign vs malignant), saline usage, and type of MDCT (16-MDCT vs 64-MDCT).A total of 4506 patients (63.7% men) with a mean (± SD) age of 56.3 ± 14.1 years and mean body mass index (weight in kilograms divided by the square of height in meters) of 23.2 ± 3.3 were included. Iopromide with 300 mg I/mL was used for 3042 patients (67.5%), and 370 mg I/mL was used for 1464 patients (32.2%). A total of 1847 scans (41.0%) had excellent image quality, 2454 (54.5%) had good quality, 176 (3.9%) had adequate quality, and 29 (0.6%) had poor quality. No differences were noted between CT scans that did or did not use saline, 16-MDCT versus 64-MDCT scans, and 300 versus 370 mg I/mL iopromide. Variations in the CNR and SNR were noted between the two iodine concentrations with respect to other parameters examined.Iopromide with both concentrations of iodine provided acceptable image quality, though according to CNR and SNR, one or the other may provide better quality in different situations. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|