About this trial
This study aims to evaluate the quality of images when low-concentration iodine contrast agents is used in chest CT with low tube voltage and if they can be used in routine imaging.
The primary endpoint of the study was the quality of the image and comparison of chest CT by using low and conventional concentration iodine contrast agents with low tube voltage and chest CT by using the conventional concentration iodine contrast agents with the conventional tube voltage; The secondary endpoint is optimizing chest CT protocol using an iodine contrast agent.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Patients aged 19 years or older, weighing less than 90 kg, and BMI less than 30 who underwent contrast-enhanced chest CT alone
Disqualifiers
Under the age of 18
Cases where contrast-enhanced CT cannot be performed
Heart failure
Pregnancy
Trial design
Parallel
Treatments tested in this trial
Iohexol (320mgI/mL) with 120kVp
DrugPatient undergoing CT scan with 120kVp protocol and using Iobrix inj. 320 (Taejoon pharm, Seoul, South Korea). CT images were obtained 55sec after Contrast media injection(100mL, 2mL/sec) with 20mL saline flushing.
Iohexol (320mgI/mL) with 100kVp
DrugPatient undergoing CT scan with 100kVp protocol and using Iobrix inj. 320 (Taejoon pharm, Seoul, South Korea). CT images were obtained 55sec after Contrast media injection(100mL, 2mL/sec) with 20mL saline flushing.
Iohexol (270mgI/mL) with 100kVp
DrugPatient undergoing CT scan with 100kVp protocol and using Iobrix inj. 270 (Taejoon pharm, Seoul, South Korea). CT images were obtained 55sec after Contrast media injection(100mL, 2mL/sec) with 20mL saline flushing.
Iohexol (240mgI/mL) with 100kVp
DrugPatient undergoing CT scan with 100kVp protocol and using Iobrix inj. 240 (Taejoon pharm, Seoul, South Korea). CT images were obtained 55sec after Contrast media injection(100mL, 2mL/sec) with 20mL saline flushing.
Treatment groups
Trial outcomes
Primary outcomes
Anatomic depiction (including image sharpness)
3 points scale qualitative analysis evaluated by two different radiologists (Poor, moderate, excellent)
Noise
3 points scale qualitative analysis evaluated by two different radiologists (Severe, minor, negligible)
Contrast-related artifact
3 points scale qualitative analysis evaluated by two different radiologists (Severe, minor, negligible)
Overall diagnostic acceptability
5 points scale qualitative analysis evaluated by two different radiologists (Non-diagnostic, suboptimal, standard, better than standard, Excellent)
Sponsors and contacts
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Jung Im Jung
Lead sponsor
Seoul St. Mary's Hospital
Sponsor institution
Taejoon Pharmaceutical Co., Ltd.
Collaborator