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Updated: Aug 10, 2026

Quantification of Levator Ani Hiatus Enlargement by Magnetic Resonance Imaging in Males and Females with Pelvic Organ Prolapse
Published on: April 17, 2019
Evaluation of a contraceptive device with MR imaging
C Maldjian1, M A Pelosi, M A Pelosi
1Department of Radiology, UNC Medical Center, Chapel Hill, NC, USA.
Magnetic Resonance Imaging (MRI) effectively evaluates the Lea's Shield diaphragm, confirming its positioning and volume. This imaging technique aids gynecologists in assessing contraceptive device efficacy and anatomical placement.
Area of Science:
- Radiology
- Gynecology
- Medical Imaging
Background:
- Contraceptive devices require accurate placement for efficacy.
- The Lea's Shield diaphragm is a contraceptive device.
- Assessing diaphragm positioning traditionally relies on clinical examination.
Purpose of the Study:
- To evaluate the positioning of the Lea's Shield diaphragm.
- To confirm the volume concept of the Lea's Shield diaphragm.
- To assess the utility of Magnetic Resonance (MR) imaging for evaluating contraceptive devices.
Main Methods:
- Utilized MR imaging to evaluate the Lea's Shield diaphragm.
- Assessed the device in two female patients (one nulliparous, one multiparous).
- Focused on anatomical positioning and device morphology relevant to function.
Main Results:
- MR imaging comprehensively evaluated the Lea's Shield diaphragm in both patients.
- All questions regarding anatomical positioning and device morphology were answered.
- Demonstrated the device's relationship to adjacent anatomical structures.
Conclusions:
- MR imaging is effective for evaluating contraceptive devices like the Lea's Shield diaphragm.
- This modality can confirm correct positioning and assess functional aspects.
- Enhances gynecologists' clinical assessment of device efficacy.
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