Browse > Article

A Study on the Correlation between Lung Ventilation Scan using Technegas and Pulmonary Function Test in Patients with COPD  

Kim, Sang-Gyu (Department of Nuclear Medicine, Severance Hospital, Yonsei University Health System)
Kim, Jin-Gu (Department of Nuclear Medicine, Severance Hospital, Yonsei University Health System)
Baek, Song-EE (Department of Nuclear Medicine, Severance Hospital, Yonsei University Health System)
Kang, Chun-Koo (Department of Nuclear Medicine, Severance Hospital, Yonsei University Health System)
Kim, Jae-Sam (Department of Nuclear Medicine, Severance Hospital, Yonsei University Health System)
Publication Information
The Korean Journal of Nuclear Medicine Technology / v.23, no.1, 2019 , pp. 45-49 More about this Journal
Abstract
Purpose Lung Ventilation Scan(LVS) images directly inhaled radiation gas to evaluate lung ventilation ability. Therefore, it is influenced by various factors related to inhalation, including number of breaths, respiratory duration, respiration rate, and breathing method. In actual LVS examinations, it is difficult for objectify the patient's ability to inhale, and there is currently no known index related to inhalation. Therefore, this study confirms the correlation between counts per second(cps) in LVS and the results of pulmonary function test(PFT) and evaluate its usefulness as an objective indicator of inhalation. Materials and Methods From October 2010 to September 2018, 36 Chronic Obstructive Pulmonary Disease(COPD) patients who had both LVS and PFT were classified by severity(Mild, Moderate, Severe). LVS was performed by creating Technegas with Vita Medical's Technegas Generator and inhaling it to the patient. LVS images were acquired with Philips's Forte equipment., and PFT used Carefusion's Vmax Encore 22. The correlation between the cps measured by setting the region of interest(ROI) of both lungs on the LVS and the forced vital capacity(FVC), forced expiratory volume in one second($FEV_1$), $FEV_1/FVC$ of the results of PFT was compared and analyzed. Results We analyzed the correlation between cps of LVS using Technegas and the results of PFT by classifying COPD patients according to severity. Correlation coefficient between $FEV_1/FVC$ and cps was Severe -0.773, Moderate -0.750, and Mild -0.437. The Severe and Modulate result values were statistically significant(P<0.05) and Mild was not significant(P=0.155). On the other hand, the correlation coefficient between FVC and cps was statistically significant only in Mild and it was 0.882(P<0.05). Conclusion According to the study, we were able to analyze correlation between cps of LVS using Technegas and the results of PFT in COPD Patients. Using this result, when performing a LVS, the results of PFT can be used as an index of inhaling capacity. In addition, it is thought that it will be more effective for the operation of the exam rooms.
Keywords
COPD; LVS; PFT; FVC; $FEV_1$; $FEV_1/FVC$;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 M. Bajc, J. B. Neilly, M. Miniati, C. Schuemichen, M. Meignan, B. Jonson. EANM guidelines for ventilation/ perfusion scintigraphy. Eur J Nucl Med Mol Imaging. 2009;36:1356-1370.   DOI
2 Mills NL, Amin N, Robinson SD, Anand A, Davies J, Patel D, et al. Do Inhaled Carbon Nanoparticles Translocate Directly into Circulation in humans? Am J Respir Crit Care Med. 2006;173:426-431.   DOI
3 Jogi J, Jonson B, Ekberg M, Bajc M. Ventilation-Perfusion SPECT with 99mTc-DTPA Versus Technegas: A Head-to-Head Study in Obstructive and Nonobstructive Disease. J Nucl Med. 2010;51:735-741.   DOI
4 Rabe KF, Hurd S, Anzueto A, Barnes PJ, Buist SA, Calverley P, et al. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease: GOLD executive summary. Am J Respir Crit Care Med 2007;176:532-555.   DOI
5 Choi JK, Paek D, Lee JO. Normal predictive values of spirometry in Korean population. Tuberc Respir Dis 2005;58:230-242.   DOI
6 Morris JF, Koski A, johnson LC. Spirometric standards for healthy nonsmoking adults. Am Rev Respir Dis 1971; 103:57-67.
7 The BTS COPD consortium. Spirometry in practice. A practical guide to using spirometry in primary care. Available at: https://www.brit-thoracic.org.uk/document-library/ deliveryof- respiratory-care/spirometry/spirometry-in-practice; Accessed December 6, 2017.
8 Gold WM, Koth LL. In: Murray JF, editor. Murray and Nadel's Textbook of Respiratory Medicine saunders, Elsevier; 2010.
9 American Thoracic Society. Lung function testing: selection of reference values and interpretative strategies. Am Rev Respir Dis 1991;144:1202-1218.   DOI
10 Swanney MP, Ruppel G, Enright PL, Pederson OF, Crapo RO, Miller MR, et al. Using the lower limit of normal for the FEV1/FVC ratio reduces the misclassification of airway obstruction. Thorax 2008;63:1046-1051.   DOI
11 Sinzinger H, Rodrigues M, Kummer F. Ventilation/perfusion lung scintigraphy. Multiple applications besides pulmonary embolism. Hell J Nucl Med. 2013;16(1):50-55.   DOI
12 Cerveri I, Corsico AG, Acoordini S, Niniano R, Ansaldo E, Anto JM, et al. Underestimation of airflow obstruction among young adults using FEV1/FVC <70% as a fixed cut-off: a longitudinal evaluation of clinical and functional outcomes. Thorax 2008;63:1040-1045.   DOI