Changes Of Bronchial Artery In COPD With CT Angiography

Anatomical Features of Bronchial Arteries With COPDObjective To evaluate anatomic variations of the bronchial arteries of the COPDpatients. Materials and Methods The general dates and the results of pulmonaryfunction test (PFT) of43COPD patients were collected and classified as4levelsaccording to the guild line of GOLD. All the patients underwent a CT angiography.Three–dimensional images of bronchial arteries were processed in workstation by theway of multiplanar reconstruction(MPR) or maximum intensity projection(MIP) andvolume rendering(VR). These images were used to evaluate anatomical properties ofbronchial arteries of COPD. Results118bronchial arteries were observed in43patient,included76right bronchial arteries (64.41%) and42left bronchial arteries (35.53%).9types of bronchial arteries were observed, R2L1(15cases) is the most frequently.Most of the both side of bronchial originated from the level of T5~6of the descendingaorta （right bronchial arteries:64，84.21%, left bronchial arteries:36,85.72%）. Rightbronchial arteries arose from the thoracic aorta independently (27，35.53%), commontrunk of bronchial arteries (CTB,25，32.90%) and intercostal-bronchial trunk (IBT,24，31.58%), included2right bronchial arteries shared one common trunk andaroused from the right subclavian artery, whereas the left bronchial arteries arose fromthe thoracic aorta and CTB in20(47.62%) and22(52.38%). In those severe and verysevere patients (GOLD3~4,25cases),74bronchial arteries could be observed,46right bronchial arteries and28left bronchial arteries. The most frequently level theyoriginated is the level of T5~6of the descending aorta. The most frequently parentarteries are CTB in those cases. Conclusion Great vibrational exist in terms of origin,parent artery and course. Special anatomical characteristics can be observed due to theinfluence of long-term anoxia and chronic inflammation in the lungs of COPD patients,such as increased numbers of bronchial arteries and increased rate of CTB as theparent artery of bronchial arteries. Morphological Changes of Bronchial Arteries in CTAngiography with COPD PatientsObjective To evaluated changes of bronchial arteries in chronic obstructivepulmonary disease on CT. Materials and Methods Dates of bronchial arteries CTangiography (BA-CTA) of43patients of COPD were collected and divided into4groups according to the guide line of GOLD, and BA-CTA dates of10healthy peopleswere collected as control group. General dates and results of pulmonary function testwere also collected. Display rate and morphological features of bronchial arteries wereshowed in three-dimensional images by using multilane reconstruction(MPR) ormaximum intensity projection(MIP) and volume rendering(VR). Dates of the COPDgroups were compared with those of control groups. Results The display rate of mainbronchial arteries in GOLD2, GOLD3and GOLD4were significantly higher than thatof the control group(GOLD2vs. control, P=0.036, GOLD3vs. control, P=0.018,GOLD4vs. control, P=0.002). Display rate of bronchial arteries in GOLD3andGOLD4were significantly higher than that of the control group (GOLD3vs. control,P=0.003, COPD4vs. control, P=0.001). More sections of bronchial arteries wereobserved in mediastinum in GOLD3and GOLD4.(GOLD3vs. control, P=0.030,GOLD4vs. control, P=0.000) The bronchial arteries were more tortuous in GOLD4than the control group(P=0.029). In the groups of GOLD3and GOLD4, the incidenceof clusters of tortuous bronchial arteries were significantly grater than the controlgroup(GOLD3vs. control, P=0.04, GOLD4vs. control, P=0.002). ConclusionChronic inflammation in COPD could lead to a high display rate of bronchial arteries,and the characters were more dilated and tortuous。It may be one of the reasons ofhemoptysis of patients suffering from COPDEnlargement Bronchial Arteries in COPD and ItsRelationship with Pulmonary FunctionObjective To evaluate the display of bronchial arteries and the diameter ofbronchial arteries in COPD patients. Materials and Method General dates andresults of pulmonary function test of43COPD patients were collected and underwent a CT angiography (CTA), counted the numbers of bronchial arteries and measured thediameter using volume rendering(VR) and multilane reconstruction(MPR) or maximumintensity projection(MIP), and analyzed correlation between diameter of bronchialarteries and parameters from PFT. Results102bronchial arteries were observed,contained41left bronchial arteries (40.2%) and61right bronchial. The mean diameterof left bronchial arteries is1.51mm，and which of the right ones is1.98mm. Diameterof right bronchial arteries is significantly enlarger than the left bronchial arteries(P=0.001). Diameter of right bronchial arteries is negative correlation with FEV1(r=-0.468, P=0.000), FEV1%(r=-0.476, P=0.000), FVC(r=-0.381, P=0.022) andFEV1/FVC (r=-0.468, P=0.000). Diameter of left bronchial arteries is negativecorrelation with FEV1(r=-0.314, P=0.046) and FEV1%(r=-0.357, P=-0.022), and nocorrelation with FVC and FEV1/FVC. Conclusion CTA can be used to clear show thebronchial arteries in COPD patients. Diameter of right bronchial arteries is significantlyenlarger than the left, Diameter of both side bronchial arteries are negative correlationwith FEV1and FEV1%. Diameters of right bronchial arteries are negative correlationwith FVC. We infer that diameters of bronchial arteries are correlation with airwayremodeling in COPD patients.