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Good Positive and Negative Likelihood Ratios

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Sialolithiasis: Likelihood Ratios

Introduction: None written.

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The likelihood ratios of findings for Sialolithiasis are listed below. See the left navigation bar to change the display.

Good Positive and Negative Likelihood Ratios

Finding +LR-LR Comments, Study
MRI Sialography Edit 50

this visualizes the ducts. Stones are invisible on MR. Sens/spec vary based on MR modality.

Study: Radiology 2000 Sep;216(3):665-71. PMID 10966693

Ultrasound Edit 40.3

Study: Radiology 2000 Sep;216(3):665-71. PMID 10966693

Poorly Diagnostic Findings

Finding +LR-LR Comments, Study
CT Scan Edit Sensitivity = 100%

high-res, non-con

Study: AJR Am J Roentgenol 1982 Sep;139(3):547-54. PMID 6981322

X-Ray Edit Sensitivity = 60%

for parotid stones. For submandibular stones, sensitivity is 80-95% (just based on radio-opaqueness).

Study: UTD: http://www.utdol.com/online/content/topic.do?topicKey=prim_ent/7995