Advanced cervical-cancer spreads from the cervix to the posterior-endometrium and vaginal walls. Improving imaging SNR in this region shortens scan-times required for precisely localizing live-tumor locations before high-dose-rate (HDR) interstitial radiation-therapy. Current endo-vaginal coils focus on vaginal-wall imaging and are in-effective for posterior-endometrium/cervix imaging. This study designs and builds an endo-vaginal array which contains sideways-looking vaginal-wall, and forward-looking cervix/posterior-endometrium elements. The forward-looking “spiral”-coil is metallic-backed, pushing the RF-lobe upwards, enlarging its FOV. The array was designed with electromagnetic simulation and tested in phantoms and swine. Forward-looking SNR over a 3x3x3 cm3 FOV was ~4-8 times that of the spine-array.
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