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Figure 2 | International Seminars in Surgical Oncology

Figure 2

From: Lymphoscintigraphy and triangulated body marking for morbidity reduction during sentinel node biopsy in breast cancer

Figure 2

Schematic of triangulated patient body marking technique. Different colored permanent markers are used to place reference points on the patient's body corresponding to the location of a sentinel node along a particular projection. With this form of triangulation, the location of the sentinel nodes can be defined in 3 dimensions along appropriate triangulation lines. The arm is maintained in the surgical position (90°) to eliminate shifting of skin markings*. The rotation of the torso referenced to the floor must be kept constant during both imaging and surgery for the relationships to remain valid, or compensated for by equally shifted projections if rotation is desired during surgery [40]. *Adapted, revised and used with permission from Radiographics . 2004;24:121–145. Krynyckyi BR, et al. RSNA Publications, Oak Brook, IL. [ref. 38].

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International Seminars in Surgical Oncology

ISSN: 1477-7800