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Ventilation and Lung Volumes
Jud W. Gurney, MD, FACR
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KEY FACTS

  • Imaging Findings

    • Top Differential Diagnoses

      • Pathology

        • Clinical Issues

          • Diagnostic Checklist

            TERMINOLOGY

            • Abbreviations and Synonyms

              • Air trapping
            • Definitions

              • Airway branching
                • Asymmetric dichotomous pattern (each parent divides into 2 daughter branches of unequal size)
                  • Approximately 17 orders (counting from peripheral to central)
                • Airway branches ~55,000
                • Total airway volume: 175 ml
              • Airway types: Conducting and respiratory
                • Conducting airways
                  • Trachea to terminal bronchiole, small volume, high turbulent airflow in the first 6 generations
                • Respiratory airways
                  • Respiratory bronchioles, large volume, diminished laminar airflow
              • Normal lung volumes in adult
                • Total lung volume: 6720 ml
                • Tidal volume: 500 ml
                  • Dead space volume: 150 ml
              • Average normal lobar lung volumes (adult male)
                • Right upper lobe: 1,140 ml
                • Left upper lobe: 1,160 ml
                • Right middle lobe: 670
                • Left lower lobe: 1,550 ml
                • Right lower lobe: 2,000 ml

            IMAGING FINDINGS

            • Radiographic Findings

              • CT Findings

                • Imaging Recommendations

                  DIFFERENTIAL DIAGNOSIS

                    PATHOLOGY

                    • General Features

                      • Staging, Grading, or Classification Criteria

                        CLINICAL ISSUES

                        • Presentation

                          • Treatment

                            DIAGNOSTIC CHECKLIST

                            • Image Interpretation Pearls

                              Selected References

                              1. Arakawa H et al: Expiratory high-resolution CT: diagnostic value in diffuse lung diseases. AJR Am J Roentgenol. 175(6):1537-43, 2000
                              Related Anatomy
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                              Related Differential Diagnoses
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                              References
                              Tables

                              Tables

                              KEY FACTS

                              • Imaging Findings

                                • Top Differential Diagnoses

                                  • Pathology

                                    • Clinical Issues

                                      • Diagnostic Checklist

                                        TERMINOLOGY

                                        • Abbreviations and Synonyms

                                          • Air trapping
                                        • Definitions

                                          • Airway branching
                                            • Asymmetric dichotomous pattern (each parent divides into 2 daughter branches of unequal size)
                                              • Approximately 17 orders (counting from peripheral to central)
                                            • Airway branches ~55,000
                                            • Total airway volume: 175 ml
                                          • Airway types: Conducting and respiratory
                                            • Conducting airways
                                              • Trachea to terminal bronchiole, small volume, high turbulent airflow in the first 6 generations
                                            • Respiratory airways
                                              • Respiratory bronchioles, large volume, diminished laminar airflow
                                          • Normal lung volumes in adult
                                            • Total lung volume: 6720 ml
                                            • Tidal volume: 500 ml
                                              • Dead space volume: 150 ml
                                          • Average normal lobar lung volumes (adult male)
                                            • Right upper lobe: 1,140 ml
                                            • Left upper lobe: 1,160 ml
                                            • Right middle lobe: 670
                                            • Left lower lobe: 1,550 ml
                                            • Right lower lobe: 2,000 ml

                                        IMAGING FINDINGS

                                        • Radiographic Findings

                                          • CT Findings

                                            • Imaging Recommendations

                                              DIFFERENTIAL DIAGNOSIS

                                                PATHOLOGY

                                                • General Features

                                                  • Staging, Grading, or Classification Criteria

                                                    CLINICAL ISSUES

                                                    • Presentation

                                                      • Treatment

                                                        DIAGNOSTIC CHECKLIST

                                                        • Image Interpretation Pearls

                                                          Selected References

                                                          1. Arakawa H et al: Expiratory high-resolution CT: diagnostic value in diffuse lung diseases. AJR Am J Roentgenol. 175(6):1537-43, 2000