However, contrast-enhanced CT can provide similar information as CTA in evaluating the size and extent of aortic pathology and in identifying postsurgical complications. If venous phase or unenhanced CT has already been performed, additional imaging with CTA may not be required in some patients. CT Chest, Abdomen, and Pelvis Without and With IV Contrast There is no relevant literature regarding venous phase CT chest, abdomen, and pelvis with noncontrast phase for the follow-up of open repair of TAAA or dissection because most follow-up imaging uses an arterially timed contrast bolus in the form of a CTA (discussed below). However, contrast-enhanced CT can provide similar information as CTA in evaluating the size and extent of aortic pathology and in identifying postsurgical complications. If venous phase or unenhanced CT has already been performed, additional imaging with CTA may not be required in some patients. CT Chest, Abdomen, and Pelvis Without IV Contrast There is no relevant literature for CT chest, abdomen, and pelvis without IV contrast in the evaluation of follow-up of open repair of TAAA or dissection. Although most follow-up after open thoracoabdominal aortic repair is performed with IV contrast [29-31], select groups of patients may be monitored with noncontrast CT to evaluate measurements of aortic size and for surrounding changes that could suggest inflammation or infection. If venous phase or unenhanced CT has already been performed, additional imaging with CTA may not be required in some patients. Thoracoabdominal Aortic Aneurysm or Dissection CT Chest and Abdomen With IV Contrast There is no relevant literature regarding venous phase CT chest and abdomen for the follow-up of open repair of TAAA or dissection. Compared with CT of the chest, abdomen, and pelvis, exclusion of the pelvis may fail to detect changing or new pathology in the pelvic vasculature.
Thoracoabdominal Aneurysm or Dissection Treatment Planning and Follow Up. However, contrast-enhanced CT can provide similar information as CTA in evaluating the size and extent of aortic pathology and in identifying postsurgical complications. If venous phase or unenhanced CT has already been performed, additional imaging with CTA may not be required in some patients. CT Chest, Abdomen, and Pelvis Without and With IV Contrast There is no relevant literature regarding venous phase CT chest, abdomen, and pelvis with noncontrast phase for the follow-up of open repair of TAAA or dissection because most follow-up imaging uses an arterially timed contrast bolus in the form of a CTA (discussed below). However, contrast-enhanced CT can provide similar information as CTA in evaluating the size and extent of aortic pathology and in identifying postsurgical complications. If venous phase or unenhanced CT has already been performed, additional imaging with CTA may not be required in some patients. CT Chest, Abdomen, and Pelvis Without IV Contrast There is no relevant literature for CT chest, abdomen, and pelvis without IV contrast in the evaluation of follow-up of open repair of TAAA or dissection. Although most follow-up after open thoracoabdominal aortic repair is performed with IV contrast [29-31], select groups of patients may be monitored with noncontrast CT to evaluate measurements of aortic size and for surrounding changes that could suggest inflammation or infection. If venous phase or unenhanced CT has already been performed, additional imaging with CTA may not be required in some patients. Thoracoabdominal Aortic Aneurysm or Dissection CT Chest and Abdomen With IV Contrast There is no relevant literature regarding venous phase CT chest and abdomen for the follow-up of open repair of TAAA or dissection. Compared with CT of the chest, abdomen, and pelvis, exclusion of the pelvis may fail to detect changing or new pathology in the pelvic vasculature.