GB Ultrasound 1,2:
-
GB wall <4mm, measured anteriorly at thinnest portion.
-
CBD width <4mm + 1 mm for each decade after 40.
AAA ultrasound3,4,5:
-
Abnormal >3cm
-
Most common infra-renal
-
Mortality at rupture 85-90%
-
Considerations for repair:
-
5.5 cm (men) and 5.0 cm (women)
-
Growth >0.5 cm in 6 months
-
-
Surveillance rates:
-
3-3.4cm – every 3 years
-
3.5-4.4cm – annual
-
4.5-5.4cm – every 6 months
-
-
Risk of Rupture Annually
-
<5.5cm, <1%
-
5.5-5.9cm, 9.4%
-
6-6.9cm, 10.2%
-
>7cm, 32.5%
-
Pulmonary Nodules6,7:
-
Guidelines from the Fleischner Society (2017) apply to:
-
Incidental solid nodules noted on CT
-
In patient without a known primary cancer at risk for metastases
-
who are not immunocompromised
-
age >35
-
-
Nodules are classified into solid, sub-solid, and ground glass
-
Patient risk factors are categorized into low and high risk based on American College of Chest Physician criteria:
-
Low Risk (cancer risk <5%)
-
young age
-
less smoking
-
smaller nodule size
-
regular margins
-
non-upper lobe location
-
-
High Risk (> 5% risk)
-
older age
-
heavy smoking
-
larger nodule size
-
irregular or spiculated margins
-
upper lobe location
-
-
Table 1 Fleischner Society 2017 Guidelines for Management of Incidentally Detected Pulmonary Nodules in Adults 6

Author notes [These recommendations do not apply to lung cancer screening, patients with immunosuppression, or patients with known primary cancer.*Dimensions are average of long and short axes, rounded to the nearest millimeter.†Consider all relevant risk factors (see Risk Factors).]
References:
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ACEP Sonoguide – Biliary
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Wiki EM Biliary Ultrasound
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Kent, K. Abdominal Aortic Aneurysms. The New England Journal of Medicine. 2014; 371:2101-8. PubMed
-
ACEP Sonoguide – Abdominal Aortic Aneurysm
-
Wiki EM Abdominal Aortic Aneurysm
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Macmahon H, Naidich DP, Goo JM, et al. Guidelines for Management of Incidental Pulmonary Nodules Detected on CT Images: From the Fleischner Society 2017. Radiology. 2017;284(1):228-243. Free Access
-
Gould MK, Donington J, Lynch WR, et al. Evaluation of individuals with pulmonary nodules: when is it lung cancer? Diagnosis and management of lung cancer, 3rd ed: American College of Chest Physicians evidence-based clinical practice guidelines. Chest. 2013;143(5 Suppl):e93S-e120S. PubMed Full Article