Uterine Artery Pseudoaneurysm Management and Imaging Techniques
Summary
Uterine artery pseudoaneurysm (UAP) represents a contained vascular breach in the uterine arterial wall, most often arising after obstetric or gynaecological interventions such as caesarean section, dilation and curettage or myomectomy. If undetected, it may lead to sudden, life-threatening haemorrhage. Contemporary management balances prompt diagnosis with tailored intervention. First‐line imaging typically employs colour Doppler ultrasonography to identify the characteristic “yin–yang” flow signature, often supplemented by contrast‐enhanced ultrasound or computed tomography angiography for anatomical detail. Magnetic resonance angiography and four-dimensional flow MRI are increasingly used to assess flow dynamics and to guide therapeutic planning. Minimally invasive transarterial embolisation (TAE) using coils, gelfoam, particles or liquid embolic agents has become the standard of care for active or high-risk lesions, preserving fertility in most cases. Select patients with small, stable pseudoaneurysms may be managed conservatively with close imaging follow-up. Advances in real-time imaging, machine-learning‐driven detection and novel embolic materials are driving more precise, patient-centred care worldwide.
Research from Nature Portfolio
Recent studies have demonstrated the utility of four-dimensional flow MRI to quantify intralesional shear stress and identify UAPs at greatest risk of rupture, enabling more accurate selection of candidates for embolisation. A separate investigation applied deep‐learning algorithms to contrast‐enhanced ultrasound datasets, achieving automated detection of micro-pseudoaneurysms with higher sensitivity than standard Doppler assessment. In addition, a multicentre prospective trial evaluated a novel biodegradable liquid embolic agent, reporting high rates of immediate occlusion with minimal recanalisation at six-month follow-up and no significant compromise of uterine perfusion.
Uterine Artery Pseudoaneurysm Management and Imaging Techniques publication trend
The graph below shows the total number of articles in uterine artery pseudoaneurysm management and imaging techniques across all publications each year (not limited to Nature Index journals).
Technical terms
Uterine artery pseudoaneurysm: A false aneurysm where blood collects between arterial layers following vessel wall injury.
Transarterial embolisation (TAE): A procedure in which embolic materials are delivered via a catheter to occlude a bleeding or abnormal vessel.
Colour Doppler ultrasonography: An ultrasound technique that visualises blood flow velocity and direction, often revealing turbulent flow in pseudoaneurysms.
Magnetic resonance angiography (MRA): An MRI modality that images blood vessels without ionising radiation, sometimes enhanced with contrast agents.
Contrast‐enhanced ultrasound (CEUS): Ultrasound performed after intravenous injection of microbubble contrast to improve visualisation of vascular structures.
References
- Diagnosis and treatment of uterine artery pseudoaneurysm. Medicine (2021).
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