Hon Fai Choi

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Current ultrasound methods for measuring myocardial strain are often limited to measurements in one or two dimensions. Cardiac motion and deformation however are truly 3-D. With the introduction of matrix transducer technology, 3-D ultrasound imaging of the heart has become feasible but suffers from low temporal and spatial resolution, making 3-D strain(More)
Skeletal muscles are characterized by a large diversity in anatomical architecture and function. Muscle force and contraction are generated by contractile fiber cells grouped in fascicle bundles, which transmit the mechanical action between origin and insertion attachments of the muscle. Therefore, an adequate representation of fascicle arrangements in(More)
Fish swimming is probably one of the most studied and best understood locomotor behaviors in vertebrates. However, many fish also actively exploit sediments. Because of their elongate body shape, anguilliform fishes are not only efficient swimmers but also very maneuverable. Consequently, many species live in complexly structured environments near the(More)
The human knee joint is a complex joint of the human body that experiences large loads. The knee stability is mainly ensured by four major ligaments, which all play vital roles to enable a proper joint articulation. As such, the interactions between the mechanical loading in these ligaments needs to be taken into account in order to obtain an adequate(More)
PURPOSE Muscles are the primary component responsible for the locomotion and change of posture of the human body. The physiologic basis of muscle force production and movement is determined by the muscle architecture (maximum muscle force, [Formula: see text], optimal muscle fiber length, [Formula: see text], tendon slack length, [Formula: see text], and(More)
The knee is a complex joint of the human body that supports large loads in both static and dynamic postures. It is mainly ensured by four major ligaments, which all play vital roles in enabling a proper joint articulation. As such, the interactions between the mechanical loadings in these ligaments need to be taken into account in order to obtain an(More)
Creating virtual bodies of real patients and using them for diagnosis and treatment planning offer the potential to further empower clinical decision making by medical experts. Virtual patient modeling allows to examine the mechanical and physiological conditions under which articulations are operating in a variety of activities without putting the patient(More)
Subjective symptoms and well-being differ in women and men after myo-cardial infarction. Forty-eight-year old woman with left-sided mastectomy due to breast cancer received radiotherapy (RT) to the chest wall by a direct electron field. The internal mammary and medial supraclavicular lymph nodes were also irradiated with an anterior mixed photon–elec-tron(More)
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