An ultrasound transducer probe (300) for intravascular operation, comprising a faceted distal front surface (302) for ultrasound emission and reception, which has at least two mutually neighboring front surface facets (304.a, 304.b) carrying respective sub-arrays (306) of micromachined ultrasonic transducer MUT elements (308), the sub-arrays of the MUT elements together forming a faceted array of MUT elements distributed over the distal front surface.