OBJECTIVE The Tubercle of Zuckerkandl (TZ), which is the remant of the lateral thyroid process, is an important anatomic structure that serves as a reliable landmark for the recurrent laryngeal nerve in thyroid surgery. Furthermore, removal of the TZ is critical for the adequate performance of a total thyroidectomy. However, there is little mention of the TZ in surgical textbooks or papers. M...

OBJECTIVE The tubercle of Zuckerkandl (TZ) is a lateral projection from the thyroid lobe in the vicinity of the extralaryngeal termination of the recurrent laryngeal nerve (RLN), which is a very useful landmark for identification of the RLN during thyroidectomy. The purpose of the present study was to test our hypothesis that the TZ is more consistently found and is larger on the right than on ...

the geometric morphometrics method was applied to study the morphological differences in 95 specimens of kura barbel (barbus lacerta, heckel 1834) collected from three riverine ecosystems of the sefidrud basin, viz. taleghan, totkabon and kloraz rivers.  for this purpose, the left sides of the specimens were photographed. then, 14 landmark-points were defined and digitized on 2d pictures using ...

Variations in pelvic orientation affect preoperative planning decisions, intraoperative navigation, and postoperative measurements. By providing the means to measure pelvic flexion at low cost and reporting pelvic flexion using the standard reference system, a lateral radiograph technique based on the pubic tubercles and anterior superior iliac spines may be useful for studying functional pelvi...

Navigation can be studied in a graph-structured framework in which the navigating agent (which we shall assume to be a point robot) moves from node to node of a \graph space". The robot can locate itself by the presence of distinctively labeled \landmark" nodes in the graph space. For a robot navigating in Euclidean space, visual detection of a distinctive landmark provides information about th...

This paper describes a method for the identification of moving objects by a team of robots based on kinematic information. The objective is to be able to identify moving objects observed by different robots without using specific landmarks. Our method uses a bayesian approach and is based on the matching of maps of dynamic objects built by the members of the team. These maps contain the relativ...

background: long-term tunneled catheters are used for the hemodialysis or chemotherapy in many patients. proper placement of the catheter tip could reduce early and late catheter related complications. aim of the present study was to evaluate a new formula for proper placement of tunneled hemodialysis or infusion port device by using an external anatomic landmark. materials and methods: a total...

OBJECTIVE Our goal was to gain a better understanding of the femoral vessel anatomy as it relates to central venous cannulation. The primary objective of this study was to use bedside ultrasonography to determine the amount of exposed femoral vein at three sites corresponding to surface anatomy of the landmark-based procedure. METHODS This cross-sectional study enrolled a random sample of 180...

BACKGROUND The pterion is a point of sutural confluence seen in the norma lateralis of the skull. The site is an important landmark in surgical approaches to the anterior and middle cranial fossa. OBJECTIVE This study was designed to determine the frequency of pterion types and anatomic positions of the pterion in dry human skulls of Nigerians in the South Eastern Zone. MATERIALS AND METHOD...

Mitral valve repair is the established and preferred surgical treatment of myxomatous mitral valve disease. Numerous reports have shown the superiority of repair versus replacement in terms of operative mortality, thromboembolism, and longterm survival.l.2 Repair places greater demands on the surgeon, who is no longer satisfied with the standard preoperative data but requires precise anatomic d...