Final answer:
Wavelength is vital in diagnostic ultrasound because it influences the resolution and image quality. Option D is correct, as the shorter the wavelength, the higher the frequency and the better the resolution of the ultrasound image.
Step-by-step explanation:
The importance of wavelength in diagnostic ultrasound is directly tied to the concept of image resolution. Wavelength affects the ability of the ultrasound to depict fine details within the body. The shorter the wavelength, the higher the frequency and the greater the resolution of the image; conversely, longer wavelengths, which correspond to lower frequencies, provide poorer resolution. Image quality in ultrasound is crucial for accurate diagnostics, and resolution is a key component of image quality. The relationship between wavelength and frequency is inversely proportional; hence, selecting an appropriate frequency, and thereby wavelength, is critical in ultrasound technology for medical imaging.
The correct answer to the question is option D: Wavelength influences resolution and image quality. Although wavelength is related to frequency and energy, it is not accurate to say that it determines amplitude or is a direct measure of wave energy.