Use of Iterative Reconstruction Method in Ultralow-dose CT for Follow-up of Patients With Intraabdominal Abscess: Comparison With Standard Dose CT
Use of Iterative Reconstruction Method in Ultralow-dose CT for Follow-up of Patients With Intraabdominal Abscess: Comparison With Standard Dose CT
Increasing radiation exposure by medical examinations is getting more concerns. For optimal
 medical imaging, reducing radiation exposure with preservation image quality is important.
 One of the solutions is use of iterative recontruction of CT examination. In this study, the
 investigators aimed to investigate the clinical feasibility of ultralow dose abdominopelvic
 CT with iterative reconstruction in patients with intraabdominal abscess. Patients with
 intrabdominal abscess usually undergo multiple CT examinations to evaluate treatment
 response. Therefore, ultralow dose CT can reduce unnecessary radiation exposure in these
 patients.
Inclusion Criteria:

 1. patients who underwent standard dose CT for suspected intraabdominal abscess

 2. patients who need follow-up CT to evaluate treatment response of abscess 3) Adult
 patient, 4) patients who agreed this study protocol

 Exclusion Criteria:

 1. pregnancy

 2. patients with poor renal function (GFR < 30 mL/min/1/73m2)

 3. Patients who have allergy to CT contrast media

 4. Patients who are not cooperative (e.g., dementia)