By Giampiero Ausili Cefaro, Carlos A. Perez, Domenico Genovesi, Annamaria Vinciguerra
From the reviews:
"This is a concise advisor to radiological definitions of lymph node teams for radiation remedy making plans. … the first viewers is radiation oncologists in any respect phases in their careers. citizens and scholars may still locate this a really necessary anatomical consultant. The authors are renowned in radiation oncology and/or radiology. … it is a worthwhile advisor for the lymph node anatomy of the key affliction website regions." (James G. Douglas, Doody’s assessment provider, July, 2009)
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Additional resources for A Guide for Delineation of Lymph Nodal Clinical Target Volume in Radiation Therapy
On the other hand, rectal cancer requires a prone setup, possibly with the support of systems for displacing the small bowel (especially in the event of preoperative treatment). Radiotherapy of prostate cancer is mostly performed in the supine position, but the prone position has been reported for this tumor as well. Moreover, supports may be placed under the patient’s knees to improve relaxation of the back, hindered by the rigid treatment couch. Since foot displacements can also change the relative position of bony landmarks that are crucial for determining * This chapter has been written with the contributions of Raffaella Basilico, Antonella Filippone, Maria Luigia Storto, and Armando Tartaro 39 A Guide for D elineation of Lymph Nodal Clinical Target Volume in R adiation Therapy the accuracy of setup, specific “foot-blocking” supports can also be used.
As for the choice of the prone setup, it should be considered that it favors spontaneous gravitational displacement of the small bowel outside the pelvis. Another condition favoring the prone position is the difficult repositioning of treatment fields on obese patients. The skin marks on the anterior pelvic region of these patients can shift, even by several centimeters, due to the presence of adipose tissue. On the other hand, the posterior skin surface is usually more flat and less mobile, and is therefore more suitable for placing skin marks for treatment.
The only difference is that some lymph node groups are further subdivided, specifically: •• Lymph nodes 12 (nodes of the hepatoduodenal ligament) are further subdivided into: –– 12a1 and 12a2, 12b1 and 12b2, 12p1 and 12p2 (where numbers 1 and 2 differentiate the lymph nodes into superior and inferior groups, respectively) •• Lymph nodes 13 (posterior pancreaticoduodenal) are further subdivided into: –– 13a (superior group) and 13b (inferior group) •• Lymph nodes 14 (nodes along the superior mesenteric artery) are further subdivided into: –– 14a: Nodes at the origin of the superior mesenteric artery –– 14b: Nodes at the origin of the inferior pancreaticoduodenal artery –– 14c: Nodes at the origin of the middle colic artery –– 14d: Nodes at the origin of the jejunal arteries •• Lymph nodes 17 (anterior pancreaticoduodenal) are further subdivided into: –– 17a (superior group) and 17b (inferior group) Fig.
A Guide for Delineation of Lymph Nodal Clinical Target Volume in Radiation Therapy by Giampiero Ausili Cefaro, Carlos A. Perez, Domenico Genovesi, Annamaria Vinciguerra