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MagneticOne hundred and two women with suspected breast disease were prospectively studied with MAI of the breast using a 0.5-T superconducting magnet (Siemens Magnetom) with an operating field strength of 0.35 T and radiofrequency pulse of 15 MHz. All patients had prior mammography within 4 weeks and all patients had physical examinations. The person reading the MA images had prior knowledge of the findings on mammography. All masses detected by physical examination or imaging were biopsied. In addition, 1 0 normal volunteers were also studied.The first 22 patients were studied using the body coil as the receiving antenna. The rest were examined with a surface coil designed for the breast. In all but two, the patient's images were obtained in the axial plane with a slice thickness of 10 mm in the body coil and 5 mm in the breast coil. Interdigitated images were obtained in selected cases, thereby acquiring contiguous slices.The body-coil images were done in the supine position, allowing simultaneous data acquisition on both breasts. Patients studied by surface coil were prone with the breast suspended within the coil. Only two patients who could not remain in the prone position were studied supine with the surface coil placed directly over the breast. A spin-echo (SE) pulsing sequence was used. Four different sets of SE images were obtained by varying the echo delay time (TE) and/or repetition time (TA). This equipment has simultaneous multisilice, multiecho imaging capability.TEs of 35 and 70 msec were used with a TA of 700 msec (SE 700/35 and SE 700/70). TEs of 35 and 120 msec were used with a TA of 1600 msec (SE 1 600/35and SE 1600/1 20). Images providing the most information were SE 700/35 and SE 1 600/1 20. These will be referred to as Ti-and T2-weighted images, respectively. These are not pure Ti and T2 images and are only relative MR parameters of the actual Ti and T2 of the tissue studied at that particular value of TE and TR.

Testicular salvage rates are improved markedly when surgical correction of a ruptured tunica albuginea is performed within 72 hours after a scrotal injury. The authors studied 11 patients who had suffered various types of blunt or penetrating trauma to the scrotum. The importance of ultrasound for the evaluation of the traumatized scrotum and detection of a testicular rupture is stressed. The spectrum of abnormalities that may be present after a scrotal injury is described.

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