3. Draw a pulse sequence diagram for a gradient echo imaging sequence that obtains 4 lines of kspace after a single excitation pulse. Show how kspace is sampled when an interleaved

sequential scheme is implemented. Then draw a pulse sequence diagram for the same type of sequence to obtain images at 3 echo times after a single excitation pulse, and show how kspace is sampled. Is image contrast the same or different for the two cases, and why? 4. You are imaging a liver and need to cover a volume of 19.2 cm x 19.2 cm x 10 cm at a resolution