Purpose The purpose of this study was to quantify variations in the heart, pericardium, and left ventricular myocardium (LVM) caused by cardiac movement using the breath-hold technique. Patients and methods In this study, the electrocardiography-gated four-dimensional computed tomography (CT) images of 22 patients were analyzed, which were sorted into 20 phases (0-95%) according to the cardia...

this study describes the influences of variations in life history traits and developmental patterns of pelophylax ridibunda. the causes of this variation were investigated by comparing observed patterns of interpopulational differences from geographic variables. the aim of the study was to investigate whether embryos and larvae from different populations of p. ridibunda show the same pattern of...

Purpose: This study investigated root number and canal configurations, including morphological variations, of mandibular first molars in a subpopulation South Africans.

AIM The basilar artery (BA) is the prominent median vessel of the vertebrobasilar circulation and usually terminates into two posterior cerebral arteries forming the posterior angle of the Circle of Willis (CW). To tackle different variations of CW, basilar artery acts as a guideline for neuroradiologists and neurosurgeons. Basilar termination is the most frequent site of aneurysm. Abnormalitie...