1. An ultrasonic imaging method comprising the following steps: (a) acquiring fundamental mode ultrasonic image signals and harmonic mode ultrasonic image signals with a transducer; (b) combining the fundamental and harmonic mode image signals of step (a) to form a composite image, said composite image comprising a first image region that is modulated as a function of the fundamental mode ultrasonic image signals and a second image region that is modulated primarily as a function of the harmonic mode ultrasonic image signals, the first image region being along entire scan lines at a lateral edge portion of the composite image and the second image region being along entire scan lines at a center portion of the composite image.