CT-scan-based localization of the internal mammary chain

A novel method for CT-scan-based localization of the internal mammary chain by internal mammary catheterization: an aid in breast cancer radiation therapy planning
A MUNSHI, I MALLICK, A BUDRUKKAR, R JALALI, R BADWE, K A DINSHAW, and R SARIN
Br J Radiol 2008;81 485-489

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The purpose of the study was to evaluate the localization of the internal mammary lymph node chain (IMC) using CT scan data acquired after intraoperative placement of a catheter into the internal mammary vessel (IMV). There appears to be a wide variation in the depth and location of the IMC, as recorded by CT measurements of the catheter in the IMV, demonstrating the need for individual planning. The IMC nodal area is likely to be out of the tangential portals employed in conventional practice.