There are no items in your cart
Add More
Add More
Item Details | Price |
---|
');
2.Vascular Anatomy and Circulation
3.Methods for Liver Imaging
4.Typical Artefacts Encountered in Liver Ultrasound
1. Anatomy of a Healthy Liver
o Dimensions and Form:Picture a wedge-shaped loaf of meat nestled beneath your right ribs.
o Lobes:The liver comprises two primary lobes—right and left—resembling butterfly wings, albeit without the flutter.
o Vascular System:The hepatic artery, portal vein, and hepatic veins function as the liver's intricate plumbing network.
2. Vascular Anatomy and Circulation
- Maintaining Blood Flow:
- Portal Vein:This is the principal conduit, supplying approximately 75% of the liver’s blood, predominantly loaded with nutrients sourced from the digestive tract.
- Hepatic Artery: Acting as a secondary source, it delivers oxygen-rich blood to the liver.
- Hepatic Veins:These pathways facilitate blood's exit from the liver towards the heart.
3. Methods for Liver Imaging- Achieving Optimal Imaging:
- Patient Positioning: Position the patient supine with their right arm raised overhead to enhance ribcage expansion.
- Transducer Handling: Move the transducer smoothly from the xiphoid process down to the liver's lower boundary.
- Breathing Guidance: Ask the patient to take a deep breath and hold it momentarily during scanning to stabilize the liver for clearer imaging.
4.Typical Artefacts Encountered in Liver Ultrasound- Deceptive Visuals:
- Mirror Image Artifact: This occurs when the ultrasound beam bounces off a strong reflector, creating an illusory duplicate image—stay vigilant!
- Acoustic Enhancement:A brighter region behind fluid-filled structures might appear; while it can be intriguing, at times it’s merely a demonstration of physical principles at work.
Technique Element | Description | Pro Tip |
Patient Positioning | Supine, right arm raised | Helps stretch the abdomen for a clear view |
Transducer Movement | Start subxiphoid, sweep down and laterally | Smooth and steady wins the race |
Breathing Instructions | Instruct to inhale deeply, then hold briefly | A still liver gives clearer images |
Image Focus | Adjust focus to liver depth for optimal clarity | Focus where it matters most |