The Vascular Laboratory at New York Methodist offers patients high quality, painless diagnostic studies and provides referring physicians with interpretations that assist their management of vascular disease. Whenever possible, we connect non-invasive studies performed in our laboratory and other imaging methods. These other methods include:
Attending surgeons specializing in vascular surgery interpret all studies performed by professional vascular technologists. The NYM vascular laboratory is accredited by the Intersocietal Commission for the Accreditation of Vascular Laboratories and undergoes rigorous testing to ensure the accuracy of all studies performed.
Commonly performed studies include the following:
- Carotid Duplex Studies. Carotid duplex studies help establish the presence or absence of high grade stenosis in the neck arteries that carry blood to the brain. Stenosis is a narrowing of the artery. Such studies help doctors evaluate patients with previous strokes or transient ischemic attacks. They are also useful screening studies for patients with significant risk factors for stroke such as:
A carotid bruit
Previous history of atherosclerosis
- Noninvasive Lower and Upper Extremity Arterial Studies. Noninvasive arterial studies of the leg establish the presence and location of significant arterial occlusive disease in patients with complaints of limping, pain on resting, or tissue necrosis. They consist of segmental pressures, ankle brachial indices, and pulse volume recordings. Patients needing dialysis have arterial studies of the arm done prior to angioaccess surgery. Patients with occlusive symptoms in the arms also have arterial studies performed.
- Graft Surveillance Studies. Duplex ultrasonography detects impending graft failure following revascularization of the leg. Because repair of a failing bypass can be simple and minimally invasive, it is important to diagnose graft failure prior to occlusion. All bypass patients should be included in a surveillance program, to increase graft potency and decrease limb loss.
- Arterial Duplex Studies. Injuries to the femoral artery sometimes result from angiography or cardiac catherization. Duplex ultrasonography will establish the presence of either a pseudo aneurysm or an arteriovenous fistula. It may also be therapeutic, as many of these lesions will heal following ultrasound guided compression and/or injection of thrombin. Physicians use duplex ultrasound to diagnose other types of arterial lesions, as well.
- Abdominal and Mesenteric Artery Duplex. Patients that have an abdominal mass are at risk for an abdominal aortic aneurysm. Abdominal duplex ultrasonography is a quick and easy way to gauge that risk. Ultrasound is also used as an initial screening tool for patients that may need an endovascular repair. Duplex studies are also useful screening studies for patients suspected of having mesenteric arterial disease.
- Venous Duplex. Ninety percent of the time, the cause of a pulmonary embolism is deep vein thrombosis (DVT) of the lower extremity. The medical world believes that most DVT arises from a clot originating in the legs. Duplex ultrasound detection of a DVT can decrease the risk of a pulmonary embolism, clotting, and/or restricted blood flow. All of these have severe consequences. Duplex ultrasonography is now the gold standard for the diagnosis of DVT. This study is also useful in patients with chronic venous insufficiency and venous reflux.
- Vein Mapping. Mapping of the veins to be used for bypass grafting is commonly done prior to coronary or leg surgery. It determines the condition of this conduit. The basilic and cephalic veins of the arm are commonly mapped prior to angioaccess (dialysis access) procedures.
The Vascular Laboratory is open Monday through Saturday from 7:00 a.m. to 7:00 p.m. For more information, call 718.780.3502.