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A CT evaluation of the intraperitoneal fluid distribution
Rofo : Fortschritte Auf Dem Gebiete Der Rontgenstrahlen Und Der Nuklearmedizin
|July 1, 1982
Summary
CT scanning can detect small amounts of peritoneal dialysis fluid, showing an ascending spread pattern from the pelvis to the upper abdomen. Fluid accumulation in the perihepatic space and Morison
Area of Science:
- Radiology
- Nephrology
- Abdominal Imaging
Background:
- Peritoneal dialysis (PD) involves infusing dialysate into the peritoneal cavity.
- Understanding fluid distribution is crucial for PD efficacy and complication detection.
- CT scanning is a key imaging modality for evaluating PD-related fluid dynamics.
Purpose of the Study:
- To investigate the intraperitoneal distribution patterns of dialysate during PD.
- To assess the detectability of varying fluid volumes using CT scanning.
- To correlate fluid volume with accumulation sites.
Main Methods:
- 13 patients undergoing PD were studied.
- Dialysate infusion was performed, and CT scans were obtained.
- Fluid distribution and volume were analyzed, considering patient positioning.
Main Results:
- An ascending fluid spread pattern was observed, moving from the lesser pelvis to the supramesocolic compartment.
- Fluid accumulation in the perihepatic space and Morison's pouch followed a parabolic curve with increasing volume.
- As little as 50-250 ml of fluid was detectable in the supine position within the perihepatic space and Morison's pouch.
- The minimum detectable fluid volume was 25 ml in the right decubitus position, located between the anterior abdominal wall and bowel loops.
Conclusions:
- CT scanning effectively visualizes intraperitoneal fluid distribution during PD.
- Fluid distribution follows a predictable ascending pattern, influenced by gravity and anatomy.
- Specific anatomical spaces like the perihepatic region and Morison's pouch are sensitive indicators of fluid volume, even with small amounts.