Popliteal artery entrapment syndrome refers to symptomatic compression or occlusion of the popliteal artery due to a developmentally abnormal positioning of the popliteal artery in relation to its surrounding structures such as with the medial head of gastrocnemius or less commonly with popliteus or fibrous bands. A clear protocol is outlined specifying the area of imaging, dosage of blood pooling agent and timing of imaging in neutral, plantar flexion and. Ct angiography and mri in patients with popliteal artery. Popliteal artery entrapment syndrome should be considered in patients younger than 50 years of age with isolated popliteal artery stenosis or occlusion. Due to an abnormal course of the popliteal artery and the calf muscle group, the artery can be compressed and reduce blood flow. Popliteal artery entrapment syndrome paes is a rare vascular disease that affects the legs of some young athletes. Popliteal artery entrapment syndrome paes is an uncommon cause of lower limb claudication,1most commonly affecting young athletes. Download mri protocols, access dicom images and application tips including videos on magnetom world. The muscle and tendons near the knee are positioned so that they compress the popliteal artery the main artery that runs through and behind the knee.
Popliteal artery entrapment syndrome refers to symptomatic compression or occlusion of the popliteal artery due to a developmentally abnormal positioning of. It is caused by an anomalous relationship of muscle and artery in the popliteal fossa resulting in extrinsic arterial compression. Popliteal artery entrapment syndrome paes is an uncommon congenital anomaly affecting young adults who present with symptoms of calf claudication. It is characterized by various anomalous anatomic relationships between the muscle and arteries in the popliteal fossa, resulting in extrinsic arterial compression.
Surgery to release the calf muscle and artery usually doesnt affect leg function. Paes is currently diagnosed with a combination of clinical presentation, clinical findings and imaging studies including computed tomography ctct angiography, magnetic resonance imaging mri. Popliteal artery entrapment syndrome radiology reference article. As it is poorly understood, it is at risk of misdiagnosis and mismanagement. If youve had the condition for a long time, you may need artery bypass surgery. The popliteal artery is the dominant source of blood supply to the leg below the knee. Bypass surgery is usually done only on those who have severe narrowing of the artery stenosis due to longterm popliteal artery entrapment syndrome.
Popliteal artery entrapment syndrome is an uncommon entity typically affecting young athletic males who present with symptoms of calf claudication. A combination of the magnetic resonance imaging mri with. Popliteal artery entrapment syndrome paes, described by stuart in1879, is an uncommon. Subjects journals books book series working papers. Popliteal artery entrapment syndrome radiology reference. Our radiologists work closely with ohsu mri technologists in the art of creating. This book is distributed under the terms of the creative commons. The features indicative of paes are outlined, as it can share features with other causes of elp.
The features indicative of paes are outlined, as it. It outlines all sequences and protocols currently applied in our mri section. Ct angiography and mri in patients with popliteal artery ajr. Mri and dsa findings in popliteal artery entrapment syndrome. Popliteal artery entrapment syndrome diagnosis and. A new diagnostic approach to popliteal artery entrapment. Functional popliteal artery entrapment syndrome paes is an important and possibly underrecognized cause of exertional leg pain elp.
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