Vascular enhancement during incremental body computed tomography. A simple and reliable technique

Area of Science:

• Radiology and Imaging Science
• Medical Imaging Contrast Agents

Background:

• Optimal vascular enhancement is crucial for accurate interpretation in computed tomography (CT).
• Current contrast administration protocols require optimization for efficiency and effectiveness.

Purpose of the Study:

• To evaluate a specific manual contrast medium injection technique for body CT.
• To determine if this technique provides adequate and consistent vascular enhancement.
• To assess the reliability, simplicity, and speed of the proposed method.

Main Methods:

• An initial manual bolus injection of 15 g iodine followed by a 3-5 minute infusion of 25-35 g iodine.
• Application in over 1,000 patient examinations.
• Utilized a computed tomograph capable of 3 scans per minute with 10 mm slice thickness.

Main Results:

• Achieved proper vascular enhancement (110-150 HU) during and after contrast infusion.
• Demonstrated reliable, simple, and fast performance in over 1,000 examinations.
• Enabled adequate and even vascular enhancement of the neck, mediastinum, abdomen, or pelvis.

Conclusions:

• The described manual contrast injection technique is effective for body CT.
• Real-time image review allows for individual optimization of infusion rates, minimizing contrast volume.
• A high initial infusion rate is a prerequisite for achieving proper vascular enhancement.