Interpreting Gastric Emptying Study Results

The type of food volume and caloric content significantly affect the rate of gastric emptying. The results from my gastric emptying study shows 1-hour retention of 62 percent which is below the normal threshold of 90 percent 2-hour retention of 24 percent below the normal threshold of 60 percent and 3-hour retention of 4 percent also below the normal threshold of 30 percent.

Advances In The Diagnosis And Classification Of Gastric And Intestinal Motility Disorders Nature Reviews Gastroenterology Hepatology

Gastric emptying scintigraphy has long been the standard method for measuring gastric motility.

Interpreting gastric emptying study results. ANALYSIS OF GASTRIC EMPTYING DATA 1307 5. So a normal gastric emptying test will come back with between 30-90 retention after 1 hour after 2 hours normal is less than 60 and after the full 4 hours it should be less than 10. Gastric Emptying Study Results A radiologist will interpret the images write a report and deliver the results to your doctor via the internal computer system.

Indications Diagnosis of functional gastric dysmotility. A time activity curve obtained from the geometric mean of gastric counts displayed for all time points may be helpful. The published normal values are 13.

According to my doctor these were the results. Gastric emptying is a complex physiologic process controlled by the physical and chemical composition of the GES meal sympathetic and parasympathetic innervation of the stomach and circulating neuroendocrine transmitters. Various methodologies for this study have been used including meal composition patient positioning instrumentation frequency of data acquisition study length and quantitative method.

She had this test when she was about 16 mos. I dont understand what these numbers mean. That being said everyone has different severities to gp.

Various physiologic parameters may be quantified. The symptoms of slow emptying are primarily nausea vomiting abdominal pain and abdominal fullness after eating. Gastric emptying studies are used for evaluating patients who are having symptoms that may be due to slow and less commonly rapid emptying of the stomach.

How to Interpret Gastric Emptying Scintigraphy. Severity is determined by the percentage remaining in your stomach after 4 hours. A gastric emptying study measures the rate at which food leaves the stomach to pass into the small intestine.

Where would these results rate. Gastric emptying study results. The nuclear medicine physician will provide a report to the doctor who ordered your childs emptying study.

For example if results appear as follows percent gastric emptying was 13 34 48 and 71 at 1 2 3 and 4 hours post-ingestion respectively this means that there is. For accurate quantification it is not important which method is in use. We analyzed patterns of gastric emptying.

The curve should be restricted to give a fraction remaining of 10 at time zero otherwise the fitted curve might suggest that we had started with only a fraction of the meal say 046 or much larger meal say 169. Its purpose is to investigate patients whose symptoms are thought to arise from problems where the stomach empties too slowly or too quickly. GASTRIC EMPTYING STUDY Tc-99m-Sulfur Colloid Overview The Gastric Emptying Study demonstrates the movement of an ingested bolus of solid andor liquid from the stomach into the small intestine.

Results Delayed gastric emptying was found in 109 of the 205 patients 532. A retained meal value greater than 60 at 2 hours or 10 at 4 hours supports delayed gastric emptying FIG2 A retained meal value less than 70 at 30 minutes or less than 30 at 1 hour suggests rapid gastric emptying FIG3 If utilizing a liquid meal the radiopharmaceutical is simply mixed with the 300 mL of water. Food stasis was more frequent in a group with delayed gastric emptying.

Dynamic imaging from the left anterior oblique projection over 90 minutes shows markedly delayed gastric emptying. The procedure involves the patient swallowing a small quantity of a radioactive substance. This is the standard used to see how ow gastric emptying is.

30 to 90 meal retention. The time activity curve demonstrates a prolonged liquid gastric half emptying time of 189min upper limit of normal 60 min On a scale of 1-10 and 10 being the most severe. The half-time is extrapolated to 2007 minutes.

The ﬁnal measurement of gastric emptying is based on the percentage of gastric retention at speciﬁc times after meal ingestion eg at 2 3 and 4 h. Less than or equal to 10 meal retention. This is the report.

Greater than or equal to 70 meal retention. The patient ate a radioactive hard boiled egg labeled with 13 mCi of Technetium 99M Sulfur Colloid. Less than or equal to 60 meal retention.

Gastric Emptying Scan Uses Side Effects Procedure Results