*LUNG IMAGING INTERPRETATION*

1.PERFUSION DEFECT
-ACUTE PULMONARY THROMBOEMBOLISM
-ATELECTASIS-POSTOPERATIVE
-BRONCHITIS ACUTE/CHRONIC
-BRONCHITIS CARCINOMA
-BULLAE, CYSTS
-EMPHYSEMA
-PLEURAL EFFUSION
-PNEUMONIA
-PREVIOUS PULMONARY THROMBOEMBOLISM

2.UNILATERAL DECREASED PERFUSION
-BRONCHOGENIC CARCINOMA

3.MOTTLED PERFUSION SCAN
-CONGESTIVE HEART FAILURE
-COLLAGEN VASCULAR DISEASE
-EMBOLI (AIR, AMNIOTIC FLUID, FAT, OIL, TUMOR)
-HEMANGIOENDOTHELIOMATOSIS
-INTRAVENOUS DRUG ABUSE
-INSUFFICIENT NUMBER OF PARTICLES
-METASTASES
-PNEUMONIA
-PRIMARY PULMONARY HYPERTENSION.
-TUBERCULOSIS

4.HOT SPOTS
-FAULTY INJECTION TECHNIQUE

5.LIVER VISUALIZATION ON PERFUSION SCAN
-INFERIOR OR SUPERIOR VENA CAVA OBSTRUCTION

6.FOCAL RETENTION IN XENON
-BRONCHIAL ASTHMA
-CHRONIC BRONCHITIS
-EMPHYSEMA
-SMOKE INHALATION

7.XENON RETENTION IN THE LIVER
-ALCOHOLIC LIVER DISEASE
-DIABETES MELLITUS
-OBESITY

8.XENON UPTAKE IN SKELETON
-STEROID THERAPY (INCREASED FAT IN MARROW)

9.VENTILATION-PERFUSION MISMATCH
-ACUTE PULMONARY THROMBOEMBOLISM
-BRONCHOGENIC CARCINOMA
-PREVIOUS PULMONARY EMBOLISM
-PREVIOUS RADIATION THERAPY.

10.REVERSE VENTILATION-PERFUSION MISMATCH
-ATELECTASIS IN PATIENT ON POSITIVE PRESSURE MECHANICAL VENTILATION.
-METABOLIC ALKALOSIS
-PULMONARY HYPERTENSION.



* RESPIRATORY-USEFUL TIPS *
*RESPIRATORY CLINICAL APPLICATIONS*
* RESPIRATORY SYSTEM*