Prediction of forced vital capacity with dynamic chest radiography in interstitial lung disease

Ueyama, Masakuni; Hashimoto, Seishu; Takeda, Atsushi; Maruguchi, Naoto; Yamamoto, Ryo; Matsumura, Kazuki; Nakamura, Satoshi; Terada, Satoru; Inao, Takashi; Kaji, Yuji; Yasuda, Takehiro; Hajiro, Takashi; Tanaka, Eisaku; Terada, Yoshio; Noma, Satoshi

doi:10.1016/j.ejrad.2021.109866

Cited by 13 publications

(12 citation statements)

References 34 publications

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“…However, most studies acquired erect images, with tidal and/or deep breathing manoeuvres overseen by a clinician for diaphragm/chest wall assessment, and constant inspiratory breath holding for pulmonary perfusion analysis [ 5 ]. Instructions were spoken [ 18 , 29 ] or pre-recorded [ 33 ].…”

Section: Resultsmentioning

confidence: 99%

“…1 . Inspiratory PLA (PLA insp ) has been found to correlate well with forced vital capacity (FVC) in healthy individuals [ 24 ] and those with respiratory disease [ 29 , 31 , 33 , 34 ]. These findings are detailed in Table 4 .…”

Section: Resultsmentioning

confidence: 99%

“…The relationship between PLA and FEV 1 is variable. PLA insp demonstrates correlation with FEV 1 in both healthy individuals[ 24 ] and those with restrictive lung diseases [ 31 , 33 ]. However, this relationship was not demonstrated among patients with COPD, where FEV 1 is a key marker of disease state [ 31 ].…”

Section: Resultsmentioning

confidence: 99%

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

et al. 2023

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Dynamic chest radiography (DCR) is a real-time sequential high-resolution digital X-ray imaging system of the thorax in motion over the respiratory cycle, utilising pulsed image exposure and a larger field of view than fluoroscopy coupled with a low radiation dose, where post-acquisition image processing by computer algorithm automatically characterises the motion of thoracic structures. We conducted a systematic review of the literature and found 29 relevant publications describing its use in humans including the assessment of diaphragm and chest wall motion, measurement of pulmonary ventilation and perfusion, and the assessment of airway narrowing. Work is ongoing in several other areas including assessment of diaphragmatic paralysis. We assess the findings, methodology and limitations of DCR, and we discuss the current and future roles of this promising medical imaging technology.Critical relevance statement Dynamic chest radiography provides a wealth of clinical information, but further research is required to identify its clinical niche. Graphical abstract

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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

et al. 2023

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“…DCR can provide information on several points, such as pulmonary ventilation, diaphragm movement, and lung circulation (9)(10)(11). It is expected to be clinically applied in various fields, and some reports have already been published, describing DCR as useful for evaluating chronic obstructive pulmonary disease and cystic fibrosis patients (1,2,(12)(13)(14), in the clinical application of ventilation and perfusion (15,16), and for diagnosing pulmonary hypertension (5). However, there have been few reports of its surgical application, and the ones in existence are only case reports of surgery for pleural tumor (6).…”

Section: Discussionmentioning

confidence: 99%

Preoperative detection of pleural adhesions using dynamic chest radiography: prospective analysis

Watanabe¹,

Suzuki²,

Yoshii³

et al. 2023

J Thorac Dis

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Background: To plan a surgical approach and predict the operative time or bleeding volume, it is important to determine the presence of pleural adhesions before surgery. Dynamic chest radiography (DCR)is a new modality that can dynamically capture X-rays, and we assessed the utility of DCR for detecting pleural adhesions preoperatively. Methods:The subjects of this study were those who underwent DCR before surgery from January 2020 to May 2022. The preoperative evaluation was performed by three imaging analysis modes, and pleural adhesion was defined as the that spreading to more than 20% of the thoracic cavity and/or taking more than 5 minutes to dissect.Results: Of the 120 total patients, DCR was performed properly for 119 (99.2%). Accurate preoperative evaluations of pleural adhesions were confirmed in 101 patients (84.9%), with a sensitivity of 64.5%, specificity of 91.0%, positive predictive value of 74.1%, and negative predictive value of 88.0%.Conclusions: DCR was very easy to perform in all preoperative patients with all manner of thoracic disease. We demonstrated the utility of DCR, showing its high specificity and negative predictive value.DCR has the potential to become a common preoperative examination for detecting pleural adhesions with further improvements in software programs.

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“…Prior to automated image analysis, these breath-hold inspiratory images are similar to a chest film and can be used for this purpose. DCR can also be used to calculate lung volume subdivisions ( 12 ), assess diaphragm motion ( 13 , 14 ), measure ventilation ( 15 ) and quantify lung nodule motion ( 16 ). These attributes may afford it a role as a thoracic imaging technique in the workup of individuals with lung cancer.…”

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confidence: 99%