Optimizing peritoneoscopic visualization of the liver utilizing a double telescope technique.

Area of Science:

• Hepatology
• Surgical Oncology
• Diagnostic Imaging

Background:

• Accurate detection and quantification of liver metastases are vital for staging intra-abdominal cancers and monitoring treatment efficacy.
• Most liver metastases are superficial, making complete visualization of the liver surface key for diagnosis.
• Existing techniques may not provide optimal visualization of the entire hepatic surface.

Purpose of the Study:

• To introduce and evaluate a novel peritoneoscopic technique for enhanced visualization of the liver surface.
• To improve the accuracy of detecting and quantifying liver metastases.

Main Methods:

• A dual-peritoneoscope technique was developed, utilizing two instruments for liver inspection.
• One peritoneoscope provides visualization of the superior liver surface, including the superior and posterior aspects of both lobes.
• A second peritoneoscope, inserted via the umbilicus, visualizes the inferior liver surface, with concurrent liver edge elevation.

Main Results:

• The dual-peritoneoscope technique allows for more complete visualization of the entire hepatic surface compared to single-instrument methods.
• This enhanced visualization facilitates more accurate detection of superficial liver metastases.
• The technique aids in precise quantitation of metastasis number and size.

Conclusions:

• The described dual-peritoneoscope technique significantly improves the visualization of the liver surface for detecting metastases.
• This method offers a more accurate approach to staging intra-abdominal malignancies and monitoring therapeutic response.