ACR Guidelines for Contrast Agent Usage: 1. Patient Selection: The ACRemphasizes the importance of patient selection when considering the use of contrast agents. Factors such as renal function, allergies, and pregnancy should be carefully evaluated before administering contrast agents.For instance, in ...
Other advanced MRI techniques, such as semiquantitative and quantitative dynamic contrast-enhanced MRI, have also been proposed as potentially useful supplements to the traditional MRI sequences 15, 16, 17. Gadolinium is not recommended in the assessment of adnexal masses during pregnancy [18]. ...
MDm Abstract Vaginal bleeding is not uncommon in the first trimester of pregnancy. The majority of such patients will have a normal intrauterine pregnancy (IUP), a nonviable IUP, or an ectopic pregnancy. Ultrasound (US) is the primary imaging modality in evaluation of these patients. US, alo...
However, patients presenting with headaches in the setting of "red flags" such as head trauma, cancer, immunocompromised state, pregnancy, patients 50 years or older, related to activity or position, or with a corresponding neurological deficit, may benefit from CT, MRI, or noninvasive vascular ...