Imaging
Gastroparesis
- Preliminary Diagnosis: Gastroparesis
-
I. What imaging technique is first-line for this diagnosis?
- II. Describe the advantages and disadvantages of this technique for diagnosis of gastroparesis.
-
III. What are the contraindications for the first-line imaging technique?
-
IV. What alternative imaging techniques are available?
- V. Describe the advantages and disadvantages of the alternative techniques for diagnosis of gastroparesis.
- VI. What are the contraindications for the alternative imaging techniques?
Preliminary Diagnosis: Gastroparesis
I. What imaging technique is first-line for this diagnosis?
Contrasted fluoroscopic upper GI examination
II. Describe the advantages and disadvantages of this technique for diagnosis of gastroparesis.
Advantages
Highly portable examination
Disadvantages
Has limited sensitivity and is poorly specific in detailing gastroparesis compared to a nuclear medicine gastric emptying test
May expose patients to a large amount of radiation
Highly operator dependent
III. What are the contraindications for the first-line imaging technique?
May be contraindicated in pregnant patients
IV. What alternative imaging techniques are available?
Nuclear medicine technetium-99m sulfur colloid gastric emptying examination
V. Describe the advantages and disadvantages of the alternative techniques for diagnosis of gastroparesis.
Nuclear medicine technetium-99m sulfur colloid gastric emptying examination
Advantages
Gold standard for diagnosis of gastroparesis
Highly sensitive and specific in detailing gastroparesis
Disadvantages
Time-consuming and must be performed over 4 hours
Radiopharmaceuticals may not be given to pregnant patients or those breastfeeding
Offers limited evaluation of the surrounding anatomic structures
VI. What are the contraindications for the alternative imaging techniques?
Nuclear medicine technetium-99m sulfur colloid gastric emptying examination
May not be given to pregnant patients or those breastfeeding
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