Sniff test | Radiology Reference Article | Radiopaedia.org
2024年6月11日 · The fluoroscopic sniff test is a useful addition to diaphragm fluoroscopy and is used to evaluate diaphragmatic contraction and excursion in patients with suspected phrenic nerve palsy or paralysis, breathing difficulties following stroke or recent elevation of a hemidiaphragm on chest radiograph.
Diaphragmatic paralysis | Radiology Reference Article
2024年11月27日 · diaphragm plus abdomen-apposed rib cage (inspiratory) abdomen (expiratory) 18. Unbalanced activity can cause paradoxical motion of one or two compartments and this may explain some of the unexpected fluoroscopic findings. Fluoroscopic examination of the diaphragm ("sniff test") is useful in diagnosing diaphragmatic paralysis. In normal ...
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Ultrasound diaphragmatic sniff test | Radiology Case
2024年2月26日 · The right diaphragm demonstrates markedly reduced excursion and sniff motion when compared to the left. The left diaphragm demonstrates normal excursion and sniff responses.
Abnormal sniff test | Radiology Case - Radiopaedia.org
Good example of diaphragm paralysis due to phrenic nerve palsy. See sniff test for a description of the procedure.
Phrenic nerve paralysis | Radiology Reference Article
2024年9月1日 · Interpretation of diaphragmatic fluoroscopy can be difficult and this is due partly to normal variable contribution of thoracic, diaphragmatic and abdominal contributions to ventilation which can be minimized by supine positioning, see sniff test.
Normal sniff test | Radiology Case - Radiopaedia.org
Normal excursion of both hemidiaphragms was observed during quiet inspiration and expiration. During the sniff test, normal diaphragmatic relaxation was identified on both sides. No paradoxical diaphragmatic excursion was identified to suggest phrenic nerve palsy.
Elevated hemidiaphragm | Radiology Reference Article
2023年3月21日 · above the diaphragm 1. decreased lung volume. atelectasis/collapse. prior lobectomy or pneumonectomy. pulmonary hypoplasia. pulmonary fibrosis. diaphragm 3-7. phrenic nerve palsy. cervical myelopathy. neuromuscular disease 11. diaphragmatic eventration. contralateral stroke. usually middle cerebral artery (MCA) distribution. below the diaphragm 8
Diaphragm | Radiology Reference Article | Radiopaedia.org
2024年8月21日 · Through the diaphragm are a series of three major and some minor apertures that permit the passage of structures between the thoracic and abdominal cavities: aortic hiatus (T12 level): aorta, thoracic duct, azygos vein. oesophageal hiatus (T10 level):
Abnormal sniff test | Radiology Case - Radiopaedia.org
Good example of diaphragm paralysis due to phrenic nerve palsy. See sniff test for a description of the procedure.