Objectives To compare the operational efficiency, including performance, contrast media (CM) utilization, and technologist satisfaction between a multi-use syringeless power injector (MU-SPI) and a conventional single-use dual-syringe power injector (SU-DSPI). Materials and methods In this IRB-approved, HIPAA-compliant retrospective study, we prospectively recorded randomly selected cases from the first week of the caseload to document equipment setup/release times, including 22 patients (mean age 59) using MU-SPI and 30 patients (mean age 60) using SU-DSPI. In addition, the quality of contrast enhancement was evaluated using 51 randomly selected paired cases where subjects had the same CT study performed with both MU-SPI and SU-DSPI. Finally, we retrospectively recorded unavoidable CM wastage in 688 SU-DSPI cases (one missing). Overall, the healthcare system recorded 9304 cases (mean age, 52 years ± 15; 4532 men) using MU-SPI and 689 cases (mean age, 53 years ± 16; 354 men) using SU-DSPI in the study period from July 2021 to March 2022. Statistical analyses were performed using t-tests, Fisher’s exact test, the Wilcoxon signed-rank test, and multivariate linear regression models. Results Mean injector preparation time per examination was significantly lower for MU-SPI [51.0 (SD: 26.5) seconds] versus SU-DSPI [198.8 (SD: 26.4) seconds] (p < 0.001). SU-DSPI had unavoidable CM wastage of 24.6 (SD: 16.3) mL per exam. Contrast quality showed no significant differences between the groups (p > 0.5). Costs were lower with MU-SPI ($21.70 vs. $25.00). Finally, technologists rated the MU-SPI as having better performance compared to SU-DSPI (p = 0.027). Conclusion MU-SPI significantly enhances operational efficiency and reduces costs with comparable image quality, improving technologist satisfaction. Key Points <Emphasis Type="BoldItalic">Question</Emphasis> Evaluating how multi-use syringeless power injectors improve CT workflow efficiency and resource utilization amid increasing clinical demand for contrast-enhanced CT examinations. <Emphasis Type="BoldItalic">Findings</Emphasis> The syringeless injector reduced preparation time, minimized contrast wastage, improved technologist satisfaction, and lowered consumable costs compared with the dual-syringe injector, without compromising image quality. <Emphasis Type="BoldItalic">Clinical relevance</Emphasis> Implementing multi-use syringeless power injectors can streamline CT workflow and reduce costs. The saved time may enhance patient interaction and preparation, while improved efficiency and lower consumable expenses support overall CT department productivity. Graphical Abstract

Comparing multi-use syringeless and conventional single-use dual-syringe injectors in contrast-enhanced CT: efficiency, cost, and technologist satisfaction

期刊论文
发表日期：

2025年11月27日

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Arash Mahdavi,
Gulnoor Sheriff,
Brian McKinney,
Negar Firoozeh,
Charles Watt,
Achille Mileto,
Dushyant Sahani

摘要

Objectives

To compare the operational efficiency, including performance, contrast media (CM) utilization, and technologist satisfaction between a multi-use syringeless power injector (MU-SPI) and a conventional single-use dual-syringe power injector (SU-DSPI).

Materials and methods

In this IRB-approved, HIPAA-compliant retrospective study, we prospectively recorded randomly selected cases from the first week of the caseload to document equipment setup/release times, including 22 patients (mean age 59) using MU-SPI and 30 patients (mean age 60) using SU-DSPI. In addition, the quality of contrast enhancement was evaluated using 51 randomly selected paired cases where subjects had the same CT study performed with both MU-SPI and SU-DSPI. Finally, we retrospectively recorded unavoidable CM wastage in 688 SU-DSPI cases (one missing). Overall, the healthcare system recorded 9304 cases (mean age, 52 years ± 15; 4532 men) using MU-SPI and 689 cases (mean age, 53 years ± 16; 354 men) using SU-DSPI in the study period from July 2021 to March 2022. Statistical analyses were performed using t-tests, Fisher’s exact test, the Wilcoxon signed-rank test, and multivariate linear regression models.

Results

Mean injector preparation time per examination was significantly lower for MU-SPI [51.0 (SD: 26.5) seconds] versus SU-DSPI [198.8 (SD: 26.4) seconds] (p < 0.001). SU-DSPI had unavoidable CM wastage of 24.6 (SD: 16.3) mL per exam. Contrast quality showed no significant differences between the groups (p > 0.5). Costs were lower with MU-SPI ($21.70 vs. $25.00). Finally, technologists rated the MU-SPI as having better performance compared to SU-DSPI (p = 0.027).

Conclusion

MU-SPI significantly enhances operational efficiency and reduces costs with comparable image quality, improving technologist satisfaction.

Key Points

Question Evaluating how multi-use syringeless power injectors improve CT workflow efficiency and resource utilization amid increasing clinical demand for contrast-enhanced CT examinations.

Findings The syringeless injector reduced preparation time, minimized contrast wastage, improved technologist satisfaction, and lowered consumable costs compared with the dual-syringe injector, without compromising image quality.

Clinical relevance Implementing multi-use syringeless power injectors can streamline CT workflow and reduce costs. The saved time may enhance patient interaction and preparation, while improved efficiency and lower consumable expenses support overall CT department productivity.

Graphical Abstract