Usefulness of combination of pulmonary ventilation and perfusion scintigraphy on the diagnosis of children with unilateral hyperlucent lung
| Autor: | Jong-Hau Hsu, Yu-Wen Chen, I-Chen Chen, Zen-Kong Dai, Shih-Hsiung Lin, Jiunn-Ren Wu |
|---|---|
| Rok vydání: | 2011 |
| Předmět: |
Lung Diseases
Male medicine.medical_specialty Adolescent Perfusion Imaging Pulmonary Artery Air trapping Ventilation/perfusion ratio Pulmonary hypoplasia medicine.artery Ventilation-Perfusion Ratio medicine Humans Abnormalities Multiple Radiology Nuclear Medicine and imaging Child Lung Technetium Tc 99m Aggregated Albumin Tetralogy of Fallot medicine.diagnostic_test business.industry Infant General Medicine Left pulmonary artery medicine.disease Radiography medicine.anatomical_structure Pulmonary Emphysema Child Preschool Pulmonary artery Lung Hyperlucent Technetium Tc 99m Pentetate Female Radiology Radiopharmaceuticals medicine.symptom Chest radiograph business Tomography Emission-Computed |
| Zdroj: | Nuclear Medicine Communications. 32:1052-1059 |
| ISSN: | 0143-3636 |
| DOI: | 10.1097/mnm.0b013e32834a6dfd |
| Popis: | Objectives Unilateral hyperlucent lung on chest radiograph is uncommon in children. It is often found incidentally and always refers to Swyer-James syndrome, with decrease in pulmonary vascularity and air trapping during expiration. However, it may occasionally mimic other serious lung diseases such as pulmonary hypoplasia/aplasia, defect of pulmonary artery, and other primary pulmonary disorders. In this study, we hypothesized that there would be characteristic patterns in pulmonary ventilation and perfusion scintigraphy (V/Q scan) in children with unilateral hyperlucency on chest film, which could play an important role in differential diagnosis of this disease group explicitly. Methods Children with unilateral hyperlucency on chest radiograph had a detailed clinical examination and underwent echocardiography, chest computed tomography, selective pulmonary angiogram, flexible bronchoscopy, and pulmonary V/Q scan. Results A total of 10 cases were enrolled, including two cases of unilateral pulmonary artery agenesis, three cases of Swyer-James syndrome, two cases of agenesis of the right lung, one case of lobar emphysema, and two cases of tetralogy of fallot with left pulmonary artery stenosis. Besides, an overview of children with unilateral hyperlucent lung is provided, reviewing nine studies (171 patients), including our clinical experience, and finally an algorithm for diagnosis unilateral hyperlucent lung is proposed, based on the characteristics of V/Q scan. Conclusion We chose a descriptive approach to the V/Q scan in children with unilateral hyperlucent lung on chest radiograph. This result enables us to promote the V/Q scan as a first-line tool in evaluating these patients and to avoid further unnecessary procedures. |
| Databáze: | OpenAIRE |
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