STOMACH IN MY WAY!!michigansonographerssociety.org/.../04/Stomach-in-my-way_wellsMS… · STOMACH...
Transcript of STOMACH IN MY WAY!!michigansonographerssociety.org/.../04/Stomach-in-my-way_wellsMS… · STOMACH...
STOMACH IN MY WAY!! Teresa Wells, BHSA, RDMS, RVT, RT
Professor of General and Vascular Sonography
Lansing Community College
STOP IGNORING THE STOMACH!
• Physiology
• What it does and why
• Anatomy
• GEJ
• Body
• Antrum
• Pyloric canal
• What is abnormal?
img-9gag-fun.9cache.com/photo/65479_700b_v1.jpg
IN CONCLUSION:
Sonography is sensitive and specific to detect gastric abnormalities.
Sonographer’s should be familiar with the ability to detect gastric lesions.
WHAT DOES THE STOMACH DO, HOW AND WHY?
• Bulk storage
• Mechanical breakdown
• Gastrin = acid
• Secretin = antacid
• Cholecystokinin = GB
• Mixer
FUN FACT: ACID
SONOGRAPHICALLY, WHAT’S NORMAL?
• “Gut signature”
• 1-16 mm
GUT SIGNATURE
RUGAE
FUN FACT:
BULK STORAGE
GASTRICEMPTYING
Scintigraphy
• Meal: cooked eggs and toast mixed with radiopharmaceutical
• 2-4 hours
• Gastroparesis- delay in emptying
SIZE MATTERS
BODY HABITUS
docstoc.com/docs/89895225/Body-Habitus
GASTROESOPHAGEALJUNCTION
GASTROESOPHAGEALJUNCTION
IN CONCLUSION:
Ultrasound is an effective method in the investigation of GERD in children
Easy to perform
Highly sensitivity
NO radiation
GASTROESOPHAGEAL JUNCTION
No Reflux
GASTROESOPHAGEAL JUNCTION
Reflux
GASTROESOPHAGEAL REFLUX DISEASE (GERD)
Ravi D. Kadasne, 2015. Facebook
SCANNING FOR GERD
1. MILD: <3 refluxes in 10 min
2. MODERATE: 4-6 refluxes in 10 min
3. SEVERE: >6 refluxes in 10 min
Very common in infants
• Vomiting
• Irritability and crying
• Failure to thrive
• Refusal to eat
• Aspiration pneumonia
ESOPHAGEAL REFLUX
Journal of Clinical Imaging Science | Vol. 1 | Issue 1 | Jan-Mar 2011
Moving
REFLUX COLOR DOPPLER
WIDE ESOPHAGUS
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THICKENED ESOPHAGEAL WALL
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THICKENED ESOPHAGEAL WALL
ESOPHAGEAL VARICES
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GASTRIC VARICES
ESOPHAGEAL CYST
PROXIMAL ESOPHAGUS
SPINAL MASS
ESOPHAGUS CARCINOMA
ESOPHAGUS CARCINOMA
FUN FACT: WHICH ANIMAL DOES NOT
HAVE A STOMACH?
A. Puffer fishB. Platypus
C: Seahorse
ANTRUM
ANTRUM
AL
P
ANTRUM
WATER PANCREAS
p
A
WATER FILLED STOMACH?
P
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PANCREATITIS MIMICKING STOMACH
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P P
PSEUDOCYST VS. STOMACH
PP
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PANCREATITIS MIMICKING STOMACH
L
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PANCREATITIS MIMICKING STOMACH
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P
THICKENED ANTRUM WALL
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THICKENED ANTRUM WALL
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THICKENED ANTRUM WALL
THICKENED ANTRUM WALL
THICKENED ANTRUM WALL
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THICKENED ANTRUM WALL
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THICKENED ANTRUM WALL
PARTIAL THICKENED ANTRUM WALL
PARTIAL THICKENED ANTRUM WALL
ANTRUM MASS (CARCINOMA)
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GASTRIC ULCER
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FUN FACT: HAGGIS
• Scottish savory pudding
• Sheep's stomach stuffed with diced sheep's liver, lungs and heart, oatmeal, onion, suet and seasoning
• Against US law because of sheep lungs
recessionbitesblog.wordpress.com/tag/haggis/
PYLORUS SPHINCTER
Pyloric Antrum
Pyloric Sphincter
Pylorus
PYLORUS SPHINCTER
HYPERTROPHIC PYLORIC STENOSIS
3 per 1,000 infants
Males 4:1
White
First born
Family history
• Gastric outlet obstruction
• Thickening of the muscular layer
• Failure of the canal to relax
IHPS DIAGNOSIS
Muscle width >3mm
Canal length >12mm
No fluid passing
pedsurg.ucsf.edu
IHPS
HOW TO SCAN FOR IHPS
1. Supine or RPO
2. Longitudinal pyloric canal
3. Water feeding
4. Watch what happens!
WHICH IS HPS?
A. B.
GASTRIC OUTLET OBSTRUCTION
GASTRIC OUTLET OBSTRUCTION
DILATED STOMACH
DILATED STOMACH
FUN FACT:
Joey Chestnut
World record:
• 69 Hot Dogs and Buns
• 10 minutes
UNUSUAL INCIDENTALS
S
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UNUSUAL INCIDENTALS
BEZOAR
"A bezoar is a stone taken from the stomach of a goat and it will save you from most poisons."
—Snape lecturing in Harry Potter's first year Potion class
harrypotter.wikia.com/wiki/Bezoar
BEZOAR
RAPUNZEL SYNDROME
RAPUNZEL SYNDROME
PICA
FOREIGN BODY
FOREIGN BODIES
BODYPACKS
ASCARIS
APPENDIX
• Cecum
• Small bowel
• Iliac vessels
• Psoas muscle
• Appendix
CECUM, TERMINAL ILIUMAND THE APPENDIX
MCBURNEY’S POINT
• One-third the distance from the anterior superior iliac spine to the umbilicus
SYSTEMATIC SCANNING TECHNIQUE
Step #1 General surveyStep #2 Cecal tipStep #3 Iliac vesselsStep #4 MuscleStep #5 Retro-cecalStep #6 Where does it hurt
Scan slowly and patiently with graded compression
STEP #1 GENERAL SURVEY
• Lawn-mower
• Screen for obvious findings
STEP #2 CECAL TIP
• Identify the Cecum in transverse
• Bumpy, gas and stool filled bowel
STEP #2 CECAL TIP
Bumpy vs. smooth bowelCecum
Ilium
STEP #2 CECAL TIP
• Identify the Cecal tip
• Look for appendix inferior/medial
Cecum
STEP #3 ILIAC VESSELS
• Scan Parallel and transverse with vessels
• Look for appendix draping across vessels
STEP #3 ILIAC VESSELS
STEP #4 PSOAS MUSCLE
• Scan deep to identify the iliacus muscle
• Identify the appendix laying anterior
STEP #5 RETRO-CECAL• Decrease MHz
• Scan deep
STEP #5 RETRO-CECAL
• Rotate patient LPO
• Apply compression on patient’s back
STEP #6 WHERE DOES IT HURT
RUQ??
MEASUREMENT
• Greater than 6-7mm is abnormal
• Always measure AP (not width)
+ 8mm* 12mm
ACUTE APPENDICITISSONOGRAPHIC APPEARANCE
SECONDARY FINDING
• Free fluid
• Increased vascularity
SECONDARY FINDINGS
• Appendicolith
• Abscess
• Edema of surrounding fat
ALWAYS IMAGE THE TIP
OTHER FINDINGS
• Mesenteric adenitis
• Colitis/Crohn’s
• Intussusception
TAKE AWAYS:
Look at the stomach!
Recognize normal
Identify abnormal
6 steps to the appendix
THANK YOU
REFERENCES
Carvalho, Santos, Meirelles, Bersot & Niterói - Rio de Janeiro, RJ/BR Transabdominal ultrasound in the detection ofgastroesophageal reflux disease in children: review of 500 cases. 10.1594/ecr2012/C-1857
Chauhan, N. S., & Sood, D. (2011). Case report: Colonic bezoar due to Box Myrtle seeds: A very rare occurrence. The Indian Journal of Radiology & Imaging, 21(1), 21–23. doi:10.4103/0971-3026.76049
Costa Dias, S., Swinson, S., Torrão, H., Gonçalves, L., Kurochka, S., Vaz, C. P., & Mendes, V. (2012). Hypertrophic pyloric stenosis: tips and tricks for ultrasound diagnosis. Insights into Imaging, 3(3), 247–250. doi:10.1007/s13244-012-0168-x http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3369120/
Curry, R. A., & Tempkin, B. B. (2011). Sonography: Introduction to normal structure and function (3nd ed.). St. Louis, MO: Saunders.Transabdominal Sonography in Assessment of the Bowel in Adults AJR:192,
Dehdashti, H., Dehdashtian, M., Rahim, F., & Payvasteh, M. (2011). Sonographic Measurement of Abdominal Esophageal Length as a Diagnostic Tool in Gastroesophageal Reflux Disease in Infants. Saudi Journal of Gastroenterology : Official Journal of the Saudi Gastroenterology Association, 17(1), 53–57. doi:10.4103/1319-3767.74483 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3099082/
Gilja, O. H., Lunding, J., Hausken, T., & Gregersen, H. (2006). Gastric accommodation assessed by ultrasonography. World Journal of Gastroenterology : WJG, 12(18), 2825–2829. doi:10.3748/wjg.v12.i18.2825 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4087797/
Hagen-Ansert, S. L. (2006). Textbook of diagnostic ultrasonography. St. Louis, Mo: Mosby Elsevier.
Herliczek TW, Raghavan D, McCarten K, Wallach M. Sonographic Upper Gastrointestinal Series in the Vomiting Infant: How We Do It. J Clin Imaging Sci 2011;1:19 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3177420/
REFERENCES
Kawamura, D. M., & Lunsford, B. M. (2012). Diagnostic Medical Sonography: Abdomen and superficial structures. (3rd ed.) Philadelphia, PA: Wolters Kluwer.
Kim, J. S., & Nam, C. W. (2013). A Case of Rapunzel Syndrome. Pediatric Gastroenterology, Hepatology & Nutrition, 16(2), 127–130. doi:10.5223/pghn.2013.16.2.127 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3760701/
Likes, M., & Johnston, T. (2012). Gastric pseudoaneurysm in the setting of Loey’s Dietz Syndrome. Images in Paediatric Cardiology, 14(3), 1–5. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3663156/
Miller & Phil., (2011) Gastric Emptying Scintigraphy. Radiology Rounds 9(2). http://www.mghradrounds.org/clientuploads/february_2011/february_2011.pdf
Russo, T., Costa, C., Crujo, C., & Lopes, A. I. (2012). Protein-losing gastropathy associated with cytomegalovirus infection in a child. BMJ Case Reports, 2012, bcr0120125679. doi:10.1136/bcr.01.2012.5679 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3448344/
Weeks, D., MD Transient pancreatitis and small bowel obstruction by trichobezoar Applied Radiology. February 07, 2011 http://www.appliedradiology.com/articles/transient-pancreatitis-and-small-bowel-obstruction-by-trichobezoar#sthash.TgNkrh72.dpuf
Wong, M., Shum, S., Chau, W., & Cheng, C. (2010). Carcinoma of stomach detected by routine transabdominal ultrasound. Biomedical Imaging and Intervention Journal, 6(4), e39. doi:10.2349/biij.6.4.e39 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3097801/
Van de Putte P. and. Perlas A. June 3, 2014. Ultrasound assessment of gastric content and volume. British Journal of Anaesthesia. 10.1093/bja/aeu151