As part of the diploma work, we found out how foot x-ray under different angles in the medial and lateral direction, and the use of different central beam orientations in the caudal and cranial directions affect the display of anatomical structures on the radiograph. We determined which projections are the most optimal for showing certain anatomical structures and compared them with projections from the professional literature. Purpose: The purpose of the diploma work was to determine at which angles and at which projections we get the best representation of the certain anatomical structures. Methods of work: We first rotated the foot at a 5° angle in the medial direction to the medial posterior half-sided projection, then we did the same for lateral projection. We continued to vary the central beam from 5° to 20° angle cranially and caudally. Radiographs were evaluated according to the criteria for evaluating radiographs. Results: When turning the foot in the medial direction, we found that with increasing angle there is an increasing coverage of the metatarsals and a better view of the os cuboideum, tarsometatarsal joint, ossa cuneiformia laterale and the openness of the joints between these structures. By increasing the angle of the foot in lateral direction there is an overlap from the 2nd to the 5th foot and a good display of the metatarsophalangeal joint, ossa cuneiformia laterale and os naviculare. Increasing the central beam in the caudal direction contributed to the opening and good presentation of the metatarsophalangeal and intraphalangeal joints. The enlargement of the cranial angle caused the closure of the above-mentioned phalangeal joints. The tarsometatarsal joint and the joints between the os naviculare and the ossa cuneiformia, the os cuboideum and the calcaneus, and os naviculare and talus were nicely shown on the radiograph. Discussion and conclusion: AP projection is recommended for imaging os naviculare, os cuboideum, talus, 1st and 2nd ossa metatarsi and to show the openness of the metatarsophalangeal joints. The medial half-sided projection is suitable for imaging os naviculare, os cuboideum, ossa cuneiformia laterale and for the view of the transverse tarsal joint. Lateral half-sided projection can also be used when imaging os naviculare, ossa cuneiformia mediale and intramediale (lateral projection with 25° angle) and for a display of the 1. and 2. ossa metatarsi. A 5-degree caudal angle shows us the openness of the metatarsophalangeal and intratarsophalangeal joints. In addition to a good knowledge of anatomy and accuracy, imaging of the foot also requires professionalism and ethics of work.
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