- AVFs or Arteriovenous Fistulas: Definition
-Arteriovenous Fistulas are abnormal communications with shunting of blood from am artery to a vein that mainly involve the peripheral vascular system but can affect virtually any organ or system in the body - Vascular Trauma: CT Findings Arterial injuries
- Pseudoaneurysm
- Active arterial hemorrhage
- AV fistulae
- Occlusion
- Intimal injury vasospasm "The use of multiphasic images affords more definitive characterization of areas of “contrast blush” as to the underlying etiologies of contained vascular injuries or active hemorrhage." CT of Blunt Abdominal and Pelvic Vascular Injury
Vi M et al.
Emerg Radiol (2010) 17;21-29 "Multiphasic imaging also allows for the definitive differentiation between arterial and venous sources of hemorrhage." CT of Blunt Abdominal and Pelvic Vascular Injury
Vi M et al.
Emerg Radiol (2010) 17;21-29 - CT Angiography: Potential Limitations in Extremity Trauma
- Inadequate arterial enhancement
- Motion artifact
- Inadequate positioning
- Streak artifact " By demonstrating the extent, location, and type of injury, CT angiography aids in the decision making process to determine the appropriate management for each injury in each patient." Use of 64-Row Multidetector CT Angiography in Blunt and Penetrating Trauma of the Upper and Lower Extremities
Pieroni S et al.
RadioGraphics 2009; 29:863-876 - Sixty-four-row multidetector CT angiography of the extremities has the ability to demonstrate a variety of vascular injuries such as occlusion, pseudoaneurysm, active extravasation, and intimal dissection."
Use of 64-Row Multidetector CT Angiography in Blunt and Penetrating Trauma of the Upper and Lower Extremities
Pieroni S et al.
RadioGraphics 2009; 29:863-876
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