By Jane Bates
Ultrasound remains to be some of the most very important diagnostic instruments in drugs and is utilized by a variety of healthcare pros throughout many purposes. This e-book presents a realistic, clinically appropriate advisor for all practitioners operating within the box of belly ultrasound. Its target is to allow the operator to maximise the diagnostic details and realize the restrictions of ultrasound scans.
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Additional info for Abdominal Ultrasound: How, Why and When (3rd Edition)
Information for manufacturers seeking marketing clearance of diagnostic ultrasound systems and transducers. Center for Devices and Radiological Health, Rockville, MD, 1997 17. Duck FA. The meaning of Thermal Index (TI) and Mechanical Index (MI) values. BMUS Bull 1997; 5: 36–40 18. Meire HB, ed. Ultrasound-related litigation in obstetrics and gynecology: the need for defensive scanning. Ultrasound Obstet Gynecol 1996; 7: 233–235 19. Health Professions Council. Standards of conduct, performance and ethics, 2003.
30). • Bowel gas over the fundus can also be moved by various patient positions. Normal variants of the gallbladder The mesenteric attachment of the gallbladder to the inferior surface of the liver is variable in length. This gives rise to large variations in position; at one end of the spectrum the gallbladder, attached only at the neck, may be fairly remote from the liver, even lying in the pelvis; at the other the gallbladder fossa deeply invaginates the liver and the gallbladder appears to lie ‘intrahepatically’ enclosed on all sides by liver tissue.
A folded gallbladder frequently gives the impression of a septum but this can be distinguished by positioning the patient to unfold the gallbladder. Occasionally a gallbladder septum completely divides the lumen into two parts. True gallbladder duplication is a rare entity (Fig. 31) and it is important not to mistake this for a gallbladder with a pericholecystic collection in a symptomatic patient. Occasionally the gallbladder is absent altogether. Pitfalls in scanning the gallbladder • If the gallbladder cannot be found: • Check for previous surgery – evidence of laparoscopic surgery may be difficult to see in the darkened scanning room A B Fig.