Furthermore, the projectional nature of catheter angiograms limits its ability to evaluate the 3-D configuration of vessels, increasing the risk of error if procedures are planned based on angiogram [59]. Thoracoabdominal Aortic Aneurysm or Dissection CT Chest, Abdomen, and Pelvis With IV Contrast There is no relevant literature for venous phase CT chest, abdomen, and pelvis for the planning of thoracoabdominal aortic endovascular or open repair. Most preprocedural CT imaging for thoracoabdominal pathology uses an arterially timed contrast bolus in the form of a CTA (discussed below). Although typically not performed for the purpose of procedural planning, contrast-enhanced CT performed to evaluate for extravascular pathology can often assess for acute changes in thoracoabdominal dissection or aneurysm. If venous phase or unenhanced CT has already been performed, additional imaging with CTA may not be required in some patients but may be needed for preprocedure sizing and evaluation of pathology. CT Chest, Abdomen, and Pelvis Without and With IV Contrast There is no relevant literature for venous phase CT chest, abdomen, and pelvis with noncontrast phase for the planning of thoracoabdominal aortic endovascular or open repair. Most preprocedural CT imaging for thoracoabdominal pathology uses an arterially timed contrast bolus in the form of a CTA (discussed below). Although typically not performed for the purpose of procedural planning, contrast-enhanced CT performed to evaluate for extravascular pathology can often assess for acute changes in thoracoabdominal dissection or aneurysm. If venous phase or unenhanced CT has already been performed, additional imaging with CTA may not be required in some patients but may be needed for preprocedure sizing and evaluation of pathology.
Thoracoabdominal Aneurysm or Dissection Treatment Planning and Follow Up. Furthermore, the projectional nature of catheter angiograms limits its ability to evaluate the 3-D configuration of vessels, increasing the risk of error if procedures are planned based on angiogram [59]. Thoracoabdominal Aortic Aneurysm or Dissection CT Chest, Abdomen, and Pelvis With IV Contrast There is no relevant literature for venous phase CT chest, abdomen, and pelvis for the planning of thoracoabdominal aortic endovascular or open repair. Most preprocedural CT imaging for thoracoabdominal pathology uses an arterially timed contrast bolus in the form of a CTA (discussed below). Although typically not performed for the purpose of procedural planning, contrast-enhanced CT performed to evaluate for extravascular pathology can often assess for acute changes in thoracoabdominal dissection or aneurysm. If venous phase or unenhanced CT has already been performed, additional imaging with CTA may not be required in some patients but may be needed for preprocedure sizing and evaluation of pathology. CT Chest, Abdomen, and Pelvis Without and With IV Contrast There is no relevant literature for venous phase CT chest, abdomen, and pelvis with noncontrast phase for the planning of thoracoabdominal aortic endovascular or open repair. Most preprocedural CT imaging for thoracoabdominal pathology uses an arterially timed contrast bolus in the form of a CTA (discussed below). Although typically not performed for the purpose of procedural planning, contrast-enhanced CT performed to evaluate for extravascular pathology can often assess for acute changes in thoracoabdominal dissection or aneurysm. If venous phase or unenhanced CT has already been performed, additional imaging with CTA may not be required in some patients but may be needed for preprocedure sizing and evaluation of pathology.