Apparatus and methods are described that include ultrasound imaging devices, which may operate in a transmissive ultrasound imaging modality, and which may be used to detect properties of interest of a subject such as index of refraction, density andor speed of sound. A steering support bracket that supports a steering column is fixed to instrument panel reinforcement disposed along the vehicle width direction between left and right front pillars. A first register may store a first address of the memory block and a second register may store a second address of the memory block. The common longitudinal axes of the cylinderpiston sets are at all times parallel with each other.