A 75-year-old man was referred to our hospital for investigation of a suspected mass in the left atrium (LA) and asymmetric septal hypertrophy of the left ventricle without significant obstruction detected by screening transthoracic echocardiography of atrial fibrillation (AF). Transesophageal echocardiography revealed dynamic smoke-like echo filling in LA and a cauliflower-like, large (22×16 m...

The present study is the first to analyze the dynamic response of a poroelastic beam subjected to a moving force. Moreover, the influences of attached mass-spring systems and non-ideal supports (with local movements in the supporting points or base due to the presence of factors such as gaps, unbalanced masses, and friction or seismic excitations) on the responses were investigated. Non-ideal s...

BACKGROUND Cardiac myxoma is the most common benign heart tumor which can arise in any of the cardiac chambers, valves or related great veins. Diagnosis of a myxoma arising from the tricuspid valve apparatus is exceptional. We present a rare case of myxoma in a tricuspid valve attached to papillary muscle. CASE DETAILS A 45-year-old man was referred to our center for the evaluation dyspnea an...

An analytical expression relating mass and position of a particle attached on a cantilever to the resulting change in cantilever resonant frequency is derived. Theoretically, the position and mass of the attached particle can be deduced by combining measured resonant frequencies of several bending modes. This finding is verified experimentally using a microscale cantilever with and without an a...

A 69-year-old gentleman presented with sudden-onset dizziness and diplopia. Clinical examination findings were suggestive of posterior circulation stroke. He was found to be in atrial flutter on admission, reverting spontaneously to sinus rhythm. Three weeks before admission, he was admitted to a different hospital with anterior circulation Figure 1 (A) Transthoracic echocardiogram (PLAX view) ...

A 26-year-old man was admitted for follow-up after VSD closure without any symptoms. Echocardiography showed a mobile mass of the tricuspid valve (Fig. 1). The peduncu-lated ball-shaped mass was attached to the anterior leaflet of the tricuspid valve (Fig. 2). Histopathological examination revealed an organized thrombus without any tumor components. Fig. 1. Preoperative transthoracic echocardio...