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Yamasaki Y, Kamitani T, Sagiyama K, Hino T, Kisanuki M, Tabata K, Isoda T, Kitamura Y, Abe K, Hosokawa K, Toyomura D, Moriyama S, Kawakubo M, Yabuuchi H, Ishigami K. Dynamic chest radiography for pulmonary vascular diseases: clinical applications and correlation with other imaging modalities. Jpn J Radiol 2024; 42:126-144. [PMID: 37626168 PMCID: PMC10811043 DOI: 10.1007/s11604-023-01483-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2023] [Accepted: 08/07/2023] [Indexed: 08/27/2023]
Abstract
Dynamic chest radiography (DCR) is a novel functional radiographic imaging technique that can be used to visualize pulmonary perfusion without using contrast media. Although it has many advantages and clinical utility, most radiologists are unfamiliar with this technique because of its novelty. This review aims to (1) explain the basic principles of lung perfusion assessment using DCR, (2) discuss the advantages of DCR over other imaging modalities, and (3) review multiple specific clinical applications of DCR for pulmonary vascular diseases and compare them with other imaging modalities.
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Affiliation(s)
- Yuzo Yamasaki
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan.
| | - Takeshi Kamitani
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Koji Sagiyama
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Takuya Hino
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Megumi Kisanuki
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
- Department of Hematology, Oncology and Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kosuke Tabata
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Takuro Isoda
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Yoshiyuki Kitamura
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
| | - Kohtaro Abe
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kazuya Hosokawa
- Department of Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Daisuke Toyomura
- Department of Pediatrics, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shohei Moriyama
- Department of Hematology, Oncology and Cardiovascular Medicine, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Masateru Kawakubo
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Hidetake Yabuuchi
- Department of Health Sciences, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Kousei Ishigami
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-Ku, Fukuoka, 812-8582, Japan
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Okamoto H, Miyatake H, Kodama M, Matsubayashi J, Matsutani N, Fujino K, Tsujita Y, Shiomi N, Nakagawa Y. Discriminative Ability of Dynamic Chest Radiography to Identify Left Ventricular Dysfunction. Circ J 2023; 88:159-167. [PMID: 38030239 DOI: 10.1253/circj.cj-23-0429] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2023]
Abstract
BACKGROUND Dynamic chest radiography (DCR) produces sequential radiographs within a short examination time. It is also inexpensive and only uses a low dose of radiation. Because of the lack of reports of evaluating cardiac function using DCR in humans, we investigated its discriminative ability for left ventricular (LV) dysfunction in a study cohort.Methods and Results: We analyzed the DCR pixel values of 4 circular regions of interest (ROIs) in the hearts of 61 patients with cardiovascular disease and 10 healthy volunteers. We evaluated the relationship between changes in pixel value in the heart and the LV ejection fraction (LVEF) by echocardiography. We constructed receiver operating characteristic (ROC) curves to evaluate whether the percent change in pixel value (%∆pixel value) could be used to identify patients with reduced LVEF. A total of 21 patients had reduced LVEF (LVEF <50%), and 40 had preserved LVEF (LVEF ≥50%). The correlation between LVEF and %∆pixel value in each ROI was significant, and the area under the ROC curve of the %∆pixel values for identifying patients with reduced LVEF was satisfactory (0.808-0.827) in 3 ROIs where the entire circular area was within the cardiac shadow. CONCLUSIONS LV dysfunction can be detected by changes in the pixel value on DCR.
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Affiliation(s)
- Hiroki Okamoto
- Division of Cardiovascular Medicine, Department of Internal Medicine, Shiga University of Medical Science
| | - Hidemitsu Miyatake
- Department of Critical and Intensive Care Medicine, Shiga University of Medical Science
| | - Misato Kodama
- Division of Cardiovascular Medicine, Department of Internal Medicine, Shiga University of Medical Science
| | - Jun Matsubayashi
- Center for Clinical Research and Advanced Medicine, Shiga University of Medical Science
| | | | - Kazunori Fujino
- Department of Critical and Intensive Care Medicine, Shiga University of Medical Science
| | - Yasuyuki Tsujita
- Department of Critical and Intensive Care Medicine, Shiga University of Medical Science
| | - Naoto Shiomi
- Department of Critical and Intensive Care Medicine, Shiga University of Medical Science
| | - Yoshihisa Nakagawa
- Division of Cardiovascular Medicine, Department of Internal Medicine, Shiga University of Medical Science
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Hijikata S, Sakurai K, Takahashi Y, Azegami K. Successful visualization of pulmonary embolism using fluoroscopic video analysis in a patient with iodine contrast allergy: a case report. Eur Heart J Case Rep 2022; 6:ytac416. [PMID: 36320379 PMCID: PMC9606237 DOI: 10.1093/ehjcr/ytac416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2022] [Revised: 04/08/2022] [Accepted: 10/10/2022] [Indexed: 11/05/2022]
Abstract
Background Contrast-enhanced computed tomography (CT) is commonly used to diagnose pulmonary embolism (PE). However, a history of iodine contrast allergy presents a dilemma in the management of patients with PE. As an alternative approach, X-ray fluoroscopic video analysis has been recently reported to be useful in diagnosing PE. Case summary A 78-year-old man with dyspnoea of 1-month duration visited our hospital. His oxygen saturation was 89%, and echocardiography demonstrated right heart strain. We could not perform contrast-enhanced CT because the patient had a history of contrast allergy and refused to undergo premedicated contrast CT with anti-histamine and/or corticosteroid. Therefore, a video analysis of pulmonary circulation using dynamic chest X-ray (DCR) was performed. The reconstructed pseudo-colour video showed defects of pulmonary circulation in both lung areas. We diagnosed PE and started anticoagulant therapy. Multiple segmental defects were also observed in pulmonary perfusion scintigraphy on Day 3, which confirmed the diagnosis of PE. He was discharged on Day 9, and an improvement of the pulmonary circulation as assessed with DCR was observed. He had no symptoms at the last follow-up visit at 1 year after discharge. Discussion We describe the successful visualization of PE using DCR in a patient with iodine contrast allergy.
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Affiliation(s)
| | - Kaoru Sakurai
- Department of Cardiovascular Medicine, Shin-yurigaoka General Hospital, 255 Furusawatsuko, Asao-ward, Kawasaki, Kanagawa 180-8610, Japan
| | - Yoshihide Takahashi
- Department of Cardiovascular Medicine, Shin-yurigaoka General Hospital, 255 Furusawatsuko, Asao-ward, Kawasaki, Kanagawa 180-8610, Japan
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Sugiura T, Tanaka R, Samei E, Segars WP, Abadi E, Kasahara K, Ohkura N, Tamura M, Matsumoto I. Quantitative analysis of changes in lung density by dynamic chest radiography in association with CT values: a virtual imaging study and initial clinical corroboration. Radiol Phys Technol 2022. [PMID: 35091991 DOI: 10.1007/s12194-021-00648-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 12/20/2021] [Accepted: 12/22/2021] [Indexed: 10/19/2022]
Abstract
Dynamic chest radiography (DCR) identifies pulmonary impairments as decreased changes in radiographic lung density during respiration (Δpixel values), but not as scaled/standardized computed tomography (CT) values. Quantitative analysis correlated with CT values is beneficial for a better understanding of Δpixel values in DCR-based assessment of pulmonary function. The present study aimed to correlate Δpixel values from DCR with changes in CT values during respiration (ΔCT values) through a computer-based phantom study. A total of 20 four-dimensional computational phantoms during forced breathing were created to simulate both CT and projection images of the same virtual patients. The Δpixel and ΔCT values of the lung fields were correlated on a regression line, and the inclination was statistically evaluated to determine whether there were significant differences among physical types, sex, and breathing methods. The resulting conversion expression was also assessed in the DCR images of 37 patients. The resulting Δpixel values for 30/37 (81%) real patients, 6/7 (86%) normal controls, and 24/30 (80%) chronic obstructive pulmonary disorder patients were within the range of ΔCT values ± standard deviation (SD) reported in a previous study. In addition, no significant differences were detected for each condition of thoracic breathing, suggesting that the same regression line inclination values measured across the entire lung can be used for the conversion of Δpixel values, providing a quantitative analysis that can be correlated with ΔCT values. The developed conversion expression may be helpful for improving the understanding of respiratory changes using radiographic lung densities from DCR-based assessments of pulmonary function.
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Hoshino S, Miyatake H, Maruo Y. Using dynamic digital radiography to assess pulmonary circulation imaging in a patient with congenital heart disease. Int J Cardiovasc Imaging 2021; 38:10.1007/s10554-021-02517-4. [PMID: 34971419 DOI: 10.1007/s10554-021-02517-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 12/29/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Shinsuke Hoshino
- Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga, 520-2192, Japan.
| | - Hidemitsu Miyatake
- Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga, 520-2192, Japan
| | - Yoshihiro Maruo
- Shiga University of Medical Science, Seta Tsukinowa-cho, Otsu, Shiga, 520-2192, Japan
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Ueyama M, Hashimoto S, Takeda A, Maruguchi N, Yamamoto R, Matsumura K, Nakamura S, Terada S, Inao T, Kaji Y, Yasuda T, Hajiro T, Tanaka E, Taguchi Y, Noma S. Prediction of forced vital capacity with dynamic chest radiography in interstitial lung disease. Eur J Radiol 2021; 142:109866. [PMID: 34365304 DOI: 10.1016/j.ejrad.2021.109866] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/06/2021] [Accepted: 07/13/2021] [Indexed: 10/20/2022]
Abstract
PURPOSE The pulmonary function test (PFT) has played an essential role in diagnosing and managing interstitial lung disease (ILD) but has its contraindications and difficult conditions to perform. Therefore, the present study aimed to evaluate dynamic chest radiography (DCR) ability to predict forced vital capacity (FVC) and other PFT parameters of ILD patients. METHOD The prospective observational study included 97 patients who underwent DCR at Tenri Hospital (Tenri, Japan) between June 2019 and April 2020. Twenty-five patients with stable disease status underwent DCR twice to evaluate test-retest reliability using the intraclass correlation coefficient. From the lung field areas measured by DCR, lung volumes at maximum inspiration (V.ins) and expiration (V.exp) were estimated. Correlation coefficients between the measured values of DCR and PFT parameters were calculated. Multilinear models for predicting FVC and other PFT parameters were developed. RESULTS Intraclass correlation coefficients between first and second measurements of V.ins and V.exp were 0.94 (95% CI: 0.89-0.97, p < 0.001) and 0.88 (95% CI: 0.78-0.94, p < 0.001), respectively. The correlation coefficient between V.ins and FVC was 0.86 (95% CI: 0.79-0.90, p < 0.001). A multilinear model for predicting FVC was developed using V.ins, V.exp, age, sex, and body mass index as predictor variables, wherein the adjusted coefficient of determination was 0.814. CONCLUSIONS Lung volumes measured by DCR correlated with the lung function of ILD patients. Prediction models with high predictive power and internal validity were developed, suggesting that DCR can predict FVC and other PFT parameters of ILD patients.
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Affiliation(s)
- Masakuni Ueyama
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan.
| | - Seishu Hashimoto
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Atsushi Takeda
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Naoto Maruguchi
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Ryo Yamamoto
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Kazuki Matsumura
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Satoshi Nakamura
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Satoru Terada
- Department of Respiratory Medicine, Kyoto University, Yoshida-honmachi Sakyo-ku Kyoto-shi, Kyoto 606-8501, Japan
| | - Takashi Inao
- Department of Respiratory Medicine, Shinko Hospital, 1-4-47 Wakinohama-cho Chuo-ku Kobe-shi, Hyogo 651-0072, Japan
| | - Yusuke Kaji
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Takehiro Yasuda
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Takashi Hajiro
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Eisaku Tanaka
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Yoshio Taguchi
- Department of Respiratory Medicine, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
| | - Satoshi Noma
- Department of Radiology, Tenri Hospital, 200 Mishima-cho Tenri-shi, Nara 632-8552, Japan
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Yamasaki Y, Kamitani T, Abe K, Hosokawa K, Sagiyama K, Hida T, Matsuura Y, Kitamura Y, Maruoka Y, Isoda T, Baba S, Yoshikawa H, Kuramoto T, Yabuuchi H, Ishigami K. Diagnosis of Pulmonary Hypertension Using Dynamic Chest Radiography. Am J Respir Crit Care Med 2021; 204:1336-1337. [PMID: 34102086 DOI: 10.1164/rccm.202102-0387im] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Yuzo Yamasaki
- Kyushu University, 12923, Clinical Radiology, Fukuoka, Japan;
| | | | - Kohtaro Abe
- Kyushu University Faculty of Medicine Graduate School of Medical Science, 38305, Departments of Advanced Cardiovascular Regulation and Therapeutics, Fukuoka, Japan
| | - Kazuya Hosokawa
- Kyushu University Hospital, 145181, Cardiovascular medicine, Fukuoka, Japan
| | - Koji Sagiyama
- Kyushu University, 12923, Clinical Radiology, Fukuoka, Japan
| | - Tomoyuki Hida
- Kyushu University, 12923, Clinical Radiology, Fukuoka, Japan
| | - Yuko Matsuura
- Kyushu University, 12923, Clinical Radiology, Fukuoka, Japan
| | | | | | - Takuro Isoda
- Kyushu University, 12923, Clinical radiology, Fukuoka, Japan
| | | | - Hideki Yoshikawa
- Kyushu University Hospital, 145181, Medical Technology, Fukuoka, Japan
| | - Taku Kuramoto
- Kyushu University Hospital, 145181, Medical Technology, Fukuoka, Japan
| | | | - Kousei Ishigami
- Kyushu University, 12923, Clinical Radiology, Fukuoka, Japan
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Abstract
BACKGROUND Recently, dynamic chest radiography (DCR) was developed to evaluate pulmonary function using a flat-panel detector (FPD), which can evaluate blood flow in the pulmonary artery without injection of contrast agents. This study investigated the ability of a FPD to measure physiological changes in blood flow and to detect pulmonary embolism (PE) in monkeys.Methods and Results:DCR was performed in 5 monkeys using a FPD. Regions of interest (ROI) were placed in both lung fields of the image, and maximum changes in pixel value (∆pixel value) in the ROI were measured during 1 electrocardiogram cardiac cycle. Next, a PE model was induced using a Swan-Ganz catheter and additional images were taken. The ∆pixel value of the lungs in normal and PE models were compared in both supine and standing positions. The lung ∆pixel value followed the same cycle as the monkey electrocardiogram. ∆pixel values in the upper lung field decreased in the standing as compared to the supine position. In the PE model, the ∆pixel value decreased in the area of pulmonary blood flow occlusion and increased in the contralateral lung as compared to the normal model (normal model 1.287±0.385, PE model occluded side 0.428±0.128, PE model non-occluded side 1.900±0.431). CONCLUSIONS A FPD could detect postural changes in pulmonary blood flow and its reduction caused by pulmonary artery occlusion in a monkey model.
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Affiliation(s)
- Hidemitsu Miyatake
- Department of Critical and Intensive Care Medicine, Shiga University of Medical Science
| | - Takahisa Tabata
- Department of Critical and Intensive Care Medicine, Shiga University of Medical Science
| | - Yasuyuki Tsujita
- Department of Critical and Intensive Care Medicine, Shiga University of Medical Science
| | - Kazunori Fujino
- Department of Critical and Intensive Care Medicine, Shiga University of Medical Science
| | - Rie Tanaka
- College of Medical, Pharmaceutical & Health Sciences, Kanazawa University
| | - Yutaka Eguchi
- Department of Critical and Intensive Care Medicine, Shiga University of Medical Science
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Hanaoka J, Yoden M, Hayashi K, Shiratori T, Okamoto K, Kaku R, Kawaguchi Y, Ohshio Y, Sonoda A. Dynamic perfusion digital radiography for predicting pulmonary function after lung cancer resection. World J Surg Oncol 2021; 19:43. [PMID: 33563295 PMCID: PMC7874664 DOI: 10.1186/s12957-021-02158-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Accepted: 01/31/2021] [Indexed: 12/25/2022] Open
Abstract
Background Accurate prediction of postoperative pulmonary function is important for ensuring the safety of patients undergoing radical resection for lung cancer. Dynamic perfusion digital radiography is an excellent and easy imaging method for detecting blood flow in the lung compared with the less-convenient conventional lung perfusion scintigraphy. As such, the present study aimed to confirm whether dynamic perfusion digital radiography can be evaluated in comparison with pulmonary perfusion scintigraphy in predicting early postoperative pulmonary function and complications. Methods Dynamic perfusion digital radiography and spirometry were performed before and 1 and 3 months after radical resection for lung cancer. Correlation coefficients between blood flow ratios calculated using dynamic perfusion digital radiography and pulmonary perfusion scintigraphy were then confirmed in the same cases. In all patients who underwent dynamic perfusion digital radiography, the correlation predicted values calculated from the blood flow ratio, and measured values were examined. Furthermore, ppo%FEV1 or ppo%DLco values, which indicated the risk for perioperative complications, were examined. Results A total of 52 participants who satisfied the inclusion criteria were analyzed. Blood flow ratios measured using pulmonary perfusion scintigraphy and dynamic perfusion digital radiography showed excellent correlation and acceptable predictive accuracy. Correlation coefficients between predicted FEV1 values obtained from dynamic perfusion digital radiography or pulmonary perfusion scintigraphy and actual measured values were similar. All patients who underwent dynamic perfusion digital radiography showed excellent correlation between predicted values and those measured using spirometry. A significant difference in ppo%DLco was observed for respiratory complications but not cardiovascular complications. Conclusions Our study demonstrated that dynamic perfusion digital radiography can be a suitable alternative to pulmonary perfusion scintigraphy given its ability for predicting postoperative values and the risk for postoperative respiratory complications. Furthermore, it seemed to be an excellent modality because of its advantages, such as simplicity, low cost, and ease in obtaining in-depth respiratory functional information. Trial registration Registered at UMIN on October 25, 2017. https://upload.umin.ac.jp/cgi-open-bin/ctr/ctr_his_list.cgi?recptno=R000033957 Registration number: UMIN000029716 Supplementary Information The online version contains supplementary material available at 10.1186/s12957-021-02158-w.
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Affiliation(s)
- Jun Hanaoka
- Division of General Thoracic Surgery, Department of Surgery, Shiga University of Medical Science, Shiga, Japan.
| | - Makoto Yoden
- Division of General Thoracic Surgery, Department of Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Kazuki Hayashi
- Division of General Thoracic Surgery, Department of Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Takuya Shiratori
- Division of General Thoracic Surgery, Department of Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Keigo Okamoto
- Division of General Thoracic Surgery, Department of Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Ryosuke Kaku
- Division of General Thoracic Surgery, Department of Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Yo Kawaguchi
- Division of General Thoracic Surgery, Department of Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Yasuhiko Ohshio
- Division of General Thoracic Surgery, Department of Surgery, Shiga University of Medical Science, Shiga, Japan
| | - Akinaga Sonoda
- Department of Radiology, Shiga University of Medical Science, Shiga, Japan
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Tamura M, Matsumoto I, Saito D, Yoshida S, Takata M, Takemura H. Case report: uniportal video-assisted thoracoscopic resection of a solitary fibrous tumor preoperatively predicted visceral pleura origin using dynamic chest radiography. J Cardiothorac Surg 2020; 15:166. [PMID: 32641164 PMCID: PMC7346465 DOI: 10.1186/s13019-020-01212-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 06/29/2020] [Indexed: 11/24/2022] Open
Abstract
Background Dynamic chest radiography (DCR) is a flat-panel detector (FPD)-based functional X-ray imaging, which is performed as an additional examination in chest radiography. DCR provides objective and quantifiable information, such as diaphragm movement, pulmonary ventilation and circulation, and is reasonable for detecting tumor invasion or adhesion. Case presentation We present a case of Solitary Fibrous Tumor of Pleura (SFTP), preoperatively predicted visceral pleura origin using Dynamic chest radiography (DCR) and surgically resected through single-access (uniportal) video-assisted thoracoscopic surgery (UVATS). Conclusions UVATS may be a suitable surgical option for pedunculated SFTPs. Dynamic chest radiography provides information, such as tumor invasion or adhesion and helpful for predicting origin of the tumor.
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Affiliation(s)
- Masaya Tamura
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Takara-machi 13-1, Kanazawa, 920-8640, Japan.
| | - Isao Matsumoto
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Takara-machi 13-1, Kanazawa, 920-8640, Japan
| | - Daisuke Saito
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Takara-machi 13-1, Kanazawa, 920-8640, Japan
| | - Shuhei Yoshida
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Takara-machi 13-1, Kanazawa, 920-8640, Japan
| | - Munehisa Takata
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Takara-machi 13-1, Kanazawa, 920-8640, Japan
| | - Hirofumi Takemura
- Department of Thoracic, Cardiovascular and General Surgery, Kanazawa University, Takara-machi 13-1, Kanazawa, 920-8640, Japan
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Tamura M, Matsumoto I, Saito D, Yoshida S, Takata M, Tanaka R, Takemura H. Dynamic chest radiography: Novel and less-invasive imaging approach for preoperative assessments of pleural invasion and adhesion. Radiol Case Rep 2020; 15:702-4. [PMID: 32280402 DOI: 10.1016/j.radcr.2020.02.019] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2020] [Revised: 02/17/2020] [Accepted: 02/20/2020] [Indexed: 11/24/2022] Open
Abstract
Here, we report a case of lung cancer with preoperatively predicted invasion to the parietal pleura on dynamic chest radiography (DCR). An 82-year-old patient was referred for staging of a right lung tumor. Preoperative DCR revealed invasion or adhesion of the tumor to the chest wall, and intraoperative findings revealed invasion of the tumor to the parietal pleura. DCR provides objective and quantifiable information, including diaphragmatic movement, pulmonary ventilation, and circulation, as well as tumor invasion or adhesion and is less invasive compared to 3-dimensional chest computed tomography or cine magnetic resonance imaging. This study was our initial attempt at performing a quantitative assessment using DCR.
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Hida T, Yamada Y, Ueyama M, Araki T, Nishino M, Kurosaki A, Jinzaki M, Honda H, Hatabu H, Kudoh S. Decreased and slower diaphragmatic motion during forced breathing in severe COPD patients: Time-resolved quantitative analysis using dynamic chest radiography with a flat panel detector system. Eur J Radiol 2019; 112:28-36. [PMID: 30777216 DOI: 10.1016/j.ejrad.2018.12.023] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2018] [Revised: 12/17/2018] [Accepted: 12/30/2018] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To assess the diaphragmatic motion in chronic obstructive pulmonary disease (COPD) patients during forced breathing by time-resolved quantitative analysis using dynamic chest radiography and to demonstrate the characteristics and the difference from that in normal subjects. MATERIALS AND METHODS Thirty-one COPD patients and a matched control of 31 normal subjects on age, sex, height, and weight, who underwent chest radiographs during forced breathing using dynamic chest radiography, were included in this study. COPD patients were classified based on the criteria of the Global Initiative for Chronic Obstructive Lung Disease (GOLD) (GOLD 1, n = 3; GOLD 2, n = 12; GOLD 3, n = 13; GOLD 4, n = 3). We measured excursions and peak motion speeds of the diaphragms for each participant. We compared the results among GOLD 1/2, GOLD 3/4 groups and normal subjects and investigated associations between the data, and participants' demographics, or pulmonary function. RESULTS The excursions of bilateral diaphragms were significantly decreased in the GOLD 3/4 group relative to normal subjects (right, 39.8 ± 15.3 mm vs. 52.7 ± 15.1 mm, P = 0.030; left, 43.7 ± 14.0 mm vs. 56.9 ± 15.5 mm, P = 0.017; mean ± standard deviation) and the GOLD 1/2 group (right, 39.8 ± 15.3 mm vs. 54.4 ± 16.7 mm, P = 0.036; left, 43.7 ± 14.0 mm vs. 60.5 ± 13.9 mm, P = 0.008). The peak motion speeds of the left diaphragm in the inspiratory phase were slower in the GOLD 1/2 group than in normal subjects (24.5 ± 8.0 mm/s vs. 33.6 ± 14.0 mm/s, P = 0.038), and in the GOLD 3/4 group than in normal subjects (25.6 ± 6.8 mm/s vs. 33.6 ± 14.0 mm/s, P = 0.067). The excursions of the diaphragms showed correlation with VC, %VC, and FEV1, while the peak motion speeds showed no significant correlation with pulmonary function tests. CONCLUSIONS Time-resolved quantitative analysis of diaphragms with dynamic chest radiography indicated differences in diaphragmatic motion between COPD groups and normal subjects during forced breathing. The excursions of the diaphragms during forced breathing were significantly lower in the GOLD 3/4 group than those in the GOLD 1/2 group and normal subjects.
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Affiliation(s)
- Tomoyuki Hida
- Department of Radiology, Center for Pulmonary Functional Imaging, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA; Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
| | - Yoshitake Yamada
- Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Masako Ueyama
- Department of Health Care, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo 204-8522, Japan
| | - Tetsuro Araki
- Department of Radiology, Center for Pulmonary Functional Imaging, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Mizuki Nishino
- Department of Radiology, Center for Pulmonary Functional Imaging, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA
| | - Atsuko Kurosaki
- Department of Diagnostic Radiology, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo 204-8522, Japan
| | - Masahiro Jinzaki
- Department of Diagnostic Radiology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku-ku, Tokyo 160-8582, Japan
| | - Hiroshi Honda
- Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Hiroto Hatabu
- Department of Radiology, Center for Pulmonary Functional Imaging, Brigham and Women's Hospital, Harvard Medical School, 75 Francis St., Boston, MA 02115, USA.
| | - Shoji Kudoh
- Department of Respiratory Medicine, Fukujuji Hospital, Japan Anti-Tuberculosis Association, 3-1-24 Matsuyama, Kiyose, Tokyo 204-8522, Japan
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