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Focused assessment with sonography in trauma (commonly abbreviated as FAST) is a rapid bedside ultrasound examination performed by surgeons, emergency physicians, and paramedics as a screening test for blood around the heart (pericardial effusion) or abdominal organs (hemoperitoneum) after trauma.
A Sonographic Murphy sign is a finding when performing diagnostic medical sonography.It is different from the Murphy sign found on physical examination, but both signs are associated with cholecystitis [1] When the sonographer presses directly over the gallbladder, and the patient expresses pain, more than when the sonographer presses anywhere else, this is said to be a positive sonographic ...
Cholescintigraphy for acute cholecystitis has sensitivity of 97%, specificity of 94%. [7] Several investigators have found the sensitivity being consistently higher than 90% though specificity has varied from 73–99%, yet compared to ultrasonography, cholescintigraphy has proven to be superior. [8]
Cholecystitis accounts for 3–10% of cases of abdominal pain worldwide. [43] Cholecystitis caused an estimated 651,829 emergency department visits and 389,180 hospital admissions in the US in 2012. [44] The 2012 US mortality rate was 0.7 per 100,000 people. [44] The frequency of cholecystitis is highest in people age 50–69 years old. [43]
Emphysematous cystitis is a rare type of infection of the bladder wall by gas-forming bacteria or fungi. The most frequent offending organism is E. coli . Other gram negative bacteria, including Klebsiella and Proteus are also commonly isolated.
Murphy's sign has a high sensitivity and negative predictive value, although the specificity is not high. [2] However, in the elderly the sensitivity is markedly lower; a negative Murphy's sign in an elderly person is not useful for ruling out cholecystitis if other tests and the clinical history suggest the diagnosis.
Ultrasound involves a probe that is placed near a structure and uses the transmission of ultrasound waves through a structure to produce images, after computer processing. [1] Ultrasound of the urinary tract is performed by a probe placed on the abdominal wall, called a transducer. [1] This occurs while a person is lying down. [1]
The presence of gallstones, usually visualized by ultrasound, generally necessitates a surgical treatment (removal of the gall bladder, typically via laparoscopy). [ 27 ] Removal of the gallbladder with surgery, known as a cholecystectomy , is the definitive surgical treatment for biliary colic.