The peak blood concentration of injected gadopentetate dimeglumine depends on the bolus injection rate (12–14). The signal intensity obtained with the spoiled GRE sequences (3D fast field echo and 3D turbo field echo) increases according to the gadopentetate dimeglumine concentration . Therefore, with a spoiled GRE sequence, a fast injection rate (2–5 mL/sec) is used. However, a nonspoiled GRE sequence does not show high signal intensity when the maximum gadopentetate dimeglumine concentration reaches more than 2 mmol/L. Therefore, with a nonspoiled GRE sequence, slow injection of nondiluted gadopentetate dimeglumine or rapid injection of diluted gadopentetate dimeglumine would be recommended.
Popular Posts
-
SAGITAL ORBIT MRI PLANNING REFERRAL LINES AXIAL ORBIT MRI PLANNING REFERRAL LINES CORONAL ORBIT MRI PLANNING REFERRAL ... -
ABER Protocol for MRI Shoulder Align from coronal scout perpendicular to glenohumeral joint line (perpendicular to glenoid) Ideally th... -
Axial Plane: Prescribe plane perpendicular to midshaft of the proximal phalanx of the thumb. Scan from 1st carp-metacarpal joint th...
-
Sagital T1 (whole head left to right) Axial Flair (brain) Ax T2 hi-res 3D FSE (symphysis of mandible to superior orbit) Cornonal T2...
-
Normal MRI Anatomy The pectoralis tendon is best seen on axial T1 and T2-weighted images as a curvilinear low-signal band inserting o...
-
Prostrate MRI Appearence T1‐weighted MR images, the normal prostate gland demonstrates homogeneous intermediate to‐ low signal inten...
-
The sternum and sternoclavicular joints are difficult to evaluate with plain radiographs. The value of CT in assessing lesions of the...
-
During the last 2 decades, MRI techniques have gained an increasing role in acute stroke management. Animal and human studies have demons...
No comments:
Post a Comment