Spatial pulse length (ultrasound)
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Spatial pulse length in ultrasound imaging describes the length of time that an ultrasound pulse occupies in space. Mathematically, it is the product of the number of cycles in a pulse and the wavelength.
A shorter spatial pulse length results in higher axial resolution. Spatial pulse length can be reduced by heavier damping or use of a higher frequency transducer 1.
- 1. Penelope Allisy-Roberts, Jerry R. Williams. Farr's Physics for Medical Imaging. (2020) ISBN: 9780702028441