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Mycobacterium avium intracellulare infection

Case Study
Dr. Jonathan Hack Sunninghill Hospital

Patient history and symptoms

This middle-aged woman was known to have a mycobacterium avium intracellulare infection and presented with haemoptysis. She underwent bronchial arterial embolisation, but continued to cough up blood. A CTA was performed in order to assess for possible pulmonary arterial supply to the lesion.

Contrast

Type: Ultravist 370

Injection rate: 4 ml per second via an antecubital vein

Total volume: 60 ml

Bolus tracking: pulmonary outflow, 50HU above baseline

 SPR image showing the lesion and its bronchial communication VIP image showing pulmonary arterial supply and venous 
drainage Another VIP image showing pulmonary arterial supply and venous drainage
SPR image showing the lesion and its bronchial communication
VIP image showing pulmonary arterial supply and venous drainage
Another VIP image showing pulmonary arterial supply and venous drainage
 VR image showing the vascular status
VR image showing the vascular status

Image parameters

  • 250 mAs/slice (DoseRight on)
  • 120 kVp
  • 0.676 pitch
  • 280 mm FOV
  • 40 X 0.625 mm collimation
  • 0.9 mm X 0.45 mm reconstruction 
  • Filter: B
  • 9 second scan time

Significant findings

A cavitating lesion in the right lower lobe was detected. Blood supply via a pulmonary arterial branch was confirmed and two draining veins were detected. The bronchial communication was also well demonstrated.

How did CT make a difference in the diagnosis and treatment?

The CT was able to accurately and quickly show the relevant anatomy as described. The patient was then transferred to the interventional suite for appropriate emblolisation.


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Oct 9, 2005

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Case Study
Brilliance 40-channel
Body, bolus tracking, chest, chest CTA, DoseRight, lesion, pulmonary arteries, Thorax, Vascular, VIP
 

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