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  Pulmonary Embolism Risk by Pisa Study (with chest x-ray)

Age Range <63 (0)

63-72 (0.59)

≥73 (0.92)
Sex Female (0)

Male (0.81)
Clinical Factors
History of cardiovasc dx (-0.56)
History of pulmonary dx (-0.97)
History of DVT (0.69)
Acute onset of dyspnea (1.29)
Chest pain (0.64)
Hemoptysis (0.89)
Fever >38 degrees C (-1.17)
RV overload on EKG (1.53)
Chest Xray Factors
Oligemia (3.86)
Hilar artery amputation (3.92)
Infarcted consolidation (3.55)
Non-Infarcted consolidation (-1.23)
Pulmonary edema (-2.83)

Factor Sum  
Decimal Precision  

Include literature references: Yes   No

Equations used
FactorSum = AgeRange + Sex + ClinicalAndXrayFactors
Risk = 100 / (1 + e(3.26-FactorSum))


Calculation Details and Variables
  • Equation parameters such as Age Range, have two or more discrete values that may be used in the calculation. The numbers in the parentheses, e.g. (0), represent the values that will be used.

  1. Miniati M, Monti S, Bottai M. A structured clinical model for predicting the probability of pulmonary embolism. Am J Med. 2003 Feb 15;114(3):173-9. PubMed ID: 12637130 PubMed Logo

Associated Medical Subject Headings [MeSH]
         80 and over,   Adolescent,   Adult,   Aged,   Angiography,   Female,   Forecasting,   Humans,   Logistic Models,   Male,   Middle Aged,   Models,   Probability,   Pulmonary Embolism,   ROC Curve,   Reproducibility of Results,   Risk Assessment,   Statistical

Associated ICD10-CM Codes
   O88.813Other embolism in pregnancy, third trimester
   O88.812Other embolism in pregnancy, second trimester
   O88.811Other embolism in pregnancy, first trimester
   O88.83Other embolism in the puerperium
   I26.99Other pulmonary embolism without acute cor pulmonale

Associated ICD9-CM Codes
   673.82Pulm embol nec-del w p/p
   673.23Pulm embol nos-antepart
   673.22Pulm embol nos-del w p/p
   673.21Pulm embol nos-delivered
   673.24Pulm embol nos-postpart
   415.19Pulm embol/infarct nec
   673.83Pulmon embol nec-antepar
   673.81Pulmon embol nec-deliver
   673.84Pulmon embol nec-postpar

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