Pulmonary Perfusion by Chest Digital Dynamic Radiography: Comparison Between Breath-holding and Deep-breathing Acquisition

Overview

Journal J Appl Clin Med Phys

Specialties Biophysics
General Medicine

Date 2020 Oct 26

PMID 33104288

Citations 7

Authors

Shota Yamamoto

Terumitsu Hasebe

Kosuke Tomita

Shunsuke Kamei

Tomohiro Matsumoto

Yutaka Imai

Genki Takahashi

Yusuke Kondo

Yoko Ito

Fumio Sakamaki

Affiliations

Soon will be listed here.

Abstract

Purpose: Pulmonary perfusion is an important factor for gas exchange. Chest digital dynamic radiography (DDR) by the deep-breathing protocol can evaluate pulmonary perfusion in healthy subjects. However, respiratory artifacts may affect DDR in patients with respiratory diseases. We examined the feasibility of a breath-holding protocol and compared it with the deep-breathing protocol to reduce respiratory artifacts.

Materials And Methods: A total of 42 consecutive patients with respiratory diseases (32 males; age, 68.6 ± 12.3 yr), including 21 patients with chronic obstructive pulmonary disease, underwent chest DDR through the breath-holding protocol and the deep-breathing protocol. Imaging success rate and exposure to radiation were compared. The correlation rate of temporal changes in each pixel value between the lung fields and left cardiac ventricles was analyzed.

Results: Imaging success rate was higher with the breath-holding protocol vs the deep-breathing protocol (97% vs 69%, respectively; P < 0.0001). The entrance surface dose was lower with the breath-holding protocol (1.09 ± 0.20 vs 1.81 ± 0.08 mGy, respectively; P < 0.0001). The correlation rate was higher with the breath-holding protocol (right lung field, 41.7 ± 9.3%; left lung field, 44.2 ± 8.9% vs right lung field, 33.4 ± 6.6%; left lung field, 36.0 ± 7.1%, respectively; both lung fields, P < 0.0001). In the lower lung fields, the correlation rate was markedly different (right, 15.3% difference; left, 14.1% difference; both lung fields, P < 0.0001).

Conclusion: The breath-holding protocol resulted in high imaging success rate among patients with respiratory diseases, yielding vivid images of pulmonary perfusion.

Citing Articles

Evaluation of the Relationship Between Pulmonary Perfusion Via Chest Digital Dynamic Radiography System and Diffusing Capacity Test.

Sakamaki F, Yamamoto S, Yoshikawa T, Takahashi G, Kondo Y, Tasaki G Adv Exp Med Biol. 2024; 1463:159-165.

PMID: 39400817 DOI: 10.1007/978-3-031-67458-7_27.

Investigation of diaphragmatic motion and projected lung area in diaphragm paralysis patients using dynamic chest radiography.

Xia Z, Peng C, Fan L, Chen Q, Liu W, Ma T Quant Imaging Med Surg. 2024; 14(8):5591-5601.

PMID: 39144031 PMC: 11320492. DOI: 10.21037/qims-24-90.

Potential of dynamic chest radiography for preoperative evaluation of pleural adhesions.

Yamamoto S, Sakamaki F J Thorac Dis. 2023; 15(10):5278-5281.

PMID: 37969255 PMC: 10636484. DOI: 10.21037/jtd-23-1192.

Dynamic chest radiography: a state-of-the-art review.

Fyles F, FitzMaurice T, Robinson R, Bedi R, Burhan H, Walshaw M Insights Imaging. 2023; 14(1):107.

PMID: 37332064 PMC: 10277270. DOI: 10.1186/s13244-023-01451-4.

Retracted: Chest digital dynamic radiography to detect changes in human pulmonary perfusion in response to alveolar hypoxia.

Yamamoto S, Sakamaki F, Takahashi G, Kondo Y, Taguchi N, Esashi S J Med Radiat Sci. 2022; 70(4):e1-e11.

PMID: 36101943 PMC: 10715373. DOI: 10.1002/jmrs.619.

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