Gastroparesis other imaging findings: Difference between revisions

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Revision as of 01:35, 8 February 2018

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sadaf Sharfaei M.D.[2], Madhu Sigdel M.B.B.S.[3]

Gastric emptying scintigraphy may be helpful in the diagnosis of gastroparesis. Findings include delayed gastric emptying of food on X-ray.

Gastric Emptying Scintigraphy is considered as a gold standard of gastroparesis.
The method for this test is eating a low-fat, egg-white meal followed by repeated scan to measure the rate of gastric emptying at 0, 1, 2, and 4 hours.
The delayed gastric emptying would be confirmed, if there is:
- 90% gastric retention at 1 hour
- 60% at 2 hours (greater accuracy for detecting accelerated gastric emptying)
- 10% at 4 hours (higher accuracy for detecting slow gastric emptying)
Factors that might affect on the results of gastric emptying studies include:
- Medications that slow down the gastric emptying:
- Tobacco smoking
- Hyperglycemia
The advantages of gastric Emptying Scintigraphy include:
- Noninvasive
- Quantitative

@@ Line 9: / Line 9: @@
 ===Gastric Emptying Scintigraphy===
-* This test involves eating a bland meal, such as eggs or egg substitute, that contains a small amount of a radioactive substance, called [[radioisotope]], that shows up on scans.
+* Gastric Emptying Scintigraphy is considered as a gold standard of gastroparesis.
-* The dose of radiation from the radioisotope is not dangerous.
+* The method for this test is eating a low-fat, egg-white meal followed by repeated scan to measure the rate of [[gastric emptying]] at 0, 1, 2, and 4 hours.
-* The scan measures the rate of [[gastric emptying]] at 1, 2, 3, and 4 hours.
+* The delayed gastric emptying would be confirmed, if there is:
-* When more than 10 percent of the meal is still in the stomach at 4 hours, the diagnosis of gastroparesis is confirmed.
+** 90% gastric retention at 1 hour
+** 60% at 2 hours (greater accuracy for detecting accelerated gastric emptying)
+** 10% at 4 hours (higher accuracy for detecting slow gastric emptying)
+* Factors that might affect on the results of gastric emptying studies include:
+** [[Medication|Medications]] that slow down the gastric emptying:
+*** [[Anticholinergic|Anticholinergics]]
+*** [[Tricyclic antidepressant|Tricyclic antidepressants]]
+*** [[Narcotic|Narcotic analgesics]]
+*** [[Adrenergic agonist|Adrenergic agents]]
+** [[Tobacco smoking]]
+** [[Hyperglycemia]]
+* The advantages of gastric Emptying Scintigraphy include:
+** Noninvasive
+** Quantitative
 ==References==