2) With this method, a gadolinium-based contrast material
is injected into a peripheral vein (typically an antecubital vein); image acquisition occurs when the contrast reaches the arterial system for the first time (first-pass circulation) after circulating through the right heart chambers, pulmonary circulation, and left heart chambers.
Ecograf Peak Performance Ultrasound Inpatient Designed for High Performance 2D and 4D Exams, Transthoracic and Transesophageal, Adult Cardiovascular System, Pediatric, Neonatal, and Applications of Abdominal, Urological, for Obstetrics Gynecology and Soft Tissue, Transcranial Ultrasound with Contrast Material
, Interventional Ultrasound.
A thin accumulation of contrast material
was seen around the mass.
In some cases, a contrast material
, typically gadolinium, may be injected through an intravenous line into a vein in your hand or arm.
An abdominopelvic computed tomography (CT) scan showed the presence of a ureteral lesion with extravasation of contrast material
in the retroperitoneum and in the colon (Fig.
Since MRI is capable of imaging in multiple planes, does not require intravenous contrast material
and is sensitive to alterations in blood flow, it is of potential value in the diagnosis and follow-up of ovarian vein thrombosis.
Blood samples were drawn from patients an hour before injection of contrast material
to measure baseline serum fT3, fT4, TSH, thyroid peroxidase antibody (anti-TPO) and thyroglobulin antibody (antiTG) levels.
While some centers think that echocardiography is sufficient for the diagnosis, some others believe that enlarged and tortuous right coronary artery, the collateral arteries originating from the right coronary artery and transfer of the injected contrast material
into the pulmonary artery should be demonstrated by injection of contrast material
into the aortic root (1).
These services should have been billed at CPT code 72158 for a lumbar MRI with and without contrast material
Because of their avascular character, teratoma do not enhance with administration of contrast material
and thus can cause diagnostic confusion with choriostoma, endodermal sinus tumours and granular cell tumours.
An initial CT scan of the brain without contrast material
demonstrated a 2.
4) MRI is also well suited for imaging vascular structures in the mediastinum without involving ionising radiation or the need for intravenously administered contrast material
, (5) which is a consideration in young patients, where radiation exposure should be avoided as far as possible.