Gallbladder Infographic

References: http://emedicine.medscape.com/article/175667-overview http://emedicine.medscape.com/article/171886-overview Liddle, Rodger A., et al. "Cholecystokinin bioactivity in human plasma. Molecular forms, responses to feeding, and relationship to gallbladder contraction." Journal of Clinical Investigation 75.4 (1985): 1144. Stampfer, Meir J., et al. "Risk of symptomatic gallstones in women with severe obesity." The American journal of clinical nutrition 55.3 (1992): 652-658.

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Transcranial Doppler

Transcranial Doppler is used to identify and interrogate the intracerebral arterial system. Normally the skull is impenetrable to Ultrasound waves, but using certain windows allows adequate penetration to monitor cerebrovascular hemodynamics.

Subgaleal Hematoma

Subgaleal hemorrhage is a rare collection of fluid in the potential space of the galeal or epicranial aponeurosisand cranial periosteum. Birth trauma and forceps use typically cause it (90% of cases), and may also be present in patients with blood clotting disorders. This condition is similar in appearance to a cephalohematoma, though the cephalohematomas are … Continue reading Subgaleal Hematoma

Thyroid Ultrasound

The thyroid is an endocrine organ that secretes hormones that regulate metabolism and protein synthesis. The gland is about 10 - 20 g and butterfly shaped with 2 lobes and isthmus, 30 % of the population also have a pyramidal lobe the extends superior to the isthmus.

Omphalocele vs. Gastroschisis

Omphalocele and Gastroschisis fall under an umbrella of ventral/anterior thoraco-abdominal wall defects that also include bladder extrophy and ectopia cordis. Prenatal ultrasound is essential in the detection of these conditions. Fetal gut herniation is a normal part of intrauterine development. Begins at 6-8 weeks and completes by 10-12 weeks.   The gut elongates or grows … Continue reading Omphalocele vs. Gastroschisis

Renal Artery Doppler

The renal veins are paired blood vessels that return blood back to the IVC. The left renal vein is the longer one and courses between the superior mesenteric artery and aorta. It is important to visualize these vessels to rule out Renal Vein Thrombosis, or Nutcracker syndrome.