Three-Dimensional Optical Imaging for Pectus Excavatum Assessment

Taylor, Jordan S.; Madhavan, Sriraman; Szafer, Dalia; Pei, Allison; Koppolu, Rajashree; Barnaby, Karen; Wall, James; Chao, Stephanie

doi:10.1016/j.athoracsur.2019.04.074

Cited by 15 publications

(11 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some recent studies have indicated the possibility of alternatives to radiographic tools for the evaluation of patients with chest wall deformities [ 10 - 13 ]. Port et al [ 12 ] reported the measurement and evaluation of the treatment outcome using white light scanning.…”

Section: Discussionmentioning

confidence: 99%

Usefulness of 3-Dimensional Body Surface Scanning in the Evaluation of Patients with Pectus Carinatum

Song

Kim

Moon

et al. 2020

Korean J Thorac Cardiovasc Surg

View full text Add to dashboard Cite

Background: Radiographic modalities have been commonly used to evaluate pectus carinatum (PC), and compressive orthotic bracing is the most widely accepted treatment method. The aim of this study was to determine the efficacy of 3-dimensional (3D) body surface scanning as an alternative modality for the evaluation of PC. Methods: The medical records of 63 patients with PC who were treated with compressive orthotic bracing therapy between July 2017 and February 2019 were retrospectively analyzed. Using both 2-view chest radiography (posteroanterior and lateral view) and 3D body scanning, the height of maximal protrusion of the chest wall was measured both before and after 2 weeks of bracing therapy. The difference between the pre-and post-treatment measurements was calculated for both modalities, and these differences were compared and analyzed. Results: Based on the comparison between the pre-and post-treatment radiographs, bracing therapy produced favorable outcomes in all patients (p<0.001). The measurements obtained via 3D scanning were strongly correlated with those obtained via chest radiography (r=0.60). Conclusion: Based on the findings of this study, 3D body surface scanning appears to be an effective, radiation-free, and simple method for the post-treatment follow-up evaluation of PC, and thus can be considered an alternative to radiography.

show abstract

Section: Discussionmentioning

confidence: 99%

Usefulness of 3-Dimensional Body Surface Scanning in the Evaluation of Patients with Pectus Carinatum

Song

Kim

Moon

et al. 2020

Korean J Thorac Cardiovasc Surg

View full text Add to dashboard Cite

show abstract

“…Taylor et al used a portable Artec Eva 3D scanner in their study. The downside of this method was that the correlation coefficient decreased from over 0.87 to 0.72 (7). Although the correlation was still strong, the feasibility and generalization of this ST model became unclear.…”

Section: Introductionmentioning

confidence: 99%

“…Surface topography (ST) scans based on optical imaging systems have been applied to assess the severity of PE deformities (5)(6)(7)(8). In 2007, Poncet et al first used the InSpeck system, which comprises 4 digitizers, to assess 5 patients with PE (5).…”

Section: Introductionmentioning

confidence: 99%

“…In 2009, Glinkowski et al investigated 3D optical images of 12 PE cases utilizing systems based on 4 digital light-processing projectors (6). In 2019, Taylor and colleagues measured the topographic mapping of chest wall deformities in 42 PE patients using a portable, hand-held scanner with 1 camera (7). The advantage of optical imaging systems is to capture the 3D surface information without radiation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Surface topography index: a novel deformity severity assessment index for pectus excavatum

Wang¹,

Liu²,

Zhang³

et al. 2021

Transl Pediatr

View full text Add to dashboard Cite

Background: The surface topography index (STI) has great potential in both routine computed tomography (CT) scan and emerging optical imaging systems. However, the diagnostic accuracy and stability of the STI as a deformity severity assessment index has not been fully confirmed. Therefore, the aim of the present study was to determine the diagnostic performance of the STI as a novel deformity severity assessment index for pectus excavatum.Methods: The present study consisted of 722 chest CT images from a single center. The standard CT index (CTI) and STI were calculated for all patients. The between-group difference and the level of compliance between the CTI and STI was analyzed by t-test and Pearson correlation. The diagnostic value and optimum discriminatory values of the CTI and STI were calculated by a receiver-operating characteristic (ROC) curve and DeLong's test.Results: The distributions of the CTI and STI were similar and showed a slight overlap between the pectus excavatum (PE) and non-PE groups. Both the CTI and STI significantly differed between the 2 groups (P<0.001). The STI demonstrated a strong Pearson correlation with the CTI (r=0.91, 95% confidence interval: 0.88-0.91, P<0.001). The ROC curves showed that STI =1.58 (sensitivity: 0.93, specificity: 0.95) could be considered equivalent to CTI =2.72 (sensitivity: 0.93, specificity: 0.97) as the optimum discriminatory values. DeLong's test showed no significant difference in the ROC curve results between the CTI and STI (Z=0.90, P=0.37). Conclusions:The STI has comparative discrimination ability in PE diagnosis and deformity severity assessment when used with the standard CTI. The STI as a novel index is not only an ideal evaluation metric of PE deformity but also an objective trait for PE patients just as weight and height for everyone.

show abstract

“…In this regard, in recent years the attention of the scientific community has shifted to measurement methods based on optical scanning rather than the more common CT measurements that are more invasive to the patient. Indeed, several state-of-the-art studies propose quantitative measurements based on more-or less-expensive optical scanners [17][18][19] to assess chestwall deformities in order to facilitate treatment decisionmaking and post-treatment follow-up.…”

Section: Introductionmentioning

confidence: 99%

Handheld Optical System for Pectus Excavatum Assessment

et al. 2021

View full text Add to dashboard Cite

Disruptive 3D technologies, such as reverse engineering (RE) and additive manufacturing (AM), when applied in the medical field enable the development of new methods for personalized and non-invasive treatments. When referring to the monitoring of pectus excavatum, one of the most common thoracic malformations, 3D acquisition of the patient chest proved to be a straightforward method for assessing and measuring chest deformation. Unfortunately, such systems are usually available in a dedicated facility, can be operated only by specialized doctors with the support of engineers and can be used only with patients on site. It is therefore impossible to perform any routine check-up when the patient is unable to reach the outpatient clinic. The COVID19 pandemic situation has placed even greater restrictions on patient mobility, worsening this problem. To deal with this issue, a new low-cost portable optical scanner for monitoring pectus excavatum is proposed in this work. The scanner, named Thor 2.0, allows a remote diagnostic approach, offering the possibility to perform routine check-ups telematically. Usability tests confirmed the user-friendly nature of the devised system. The instrument was used at the Meyer Children’s Hospital (Florence, Italy) chest-malformations center to treat PE patients. The performed measurements proved to be in line with the current state of the art.

show abstract

Three-Dimensional Optical Imaging for Pectus Excavatum Assessment

Cited by 15 publications

References 28 publications

Usefulness of 3-Dimensional Body Surface Scanning in the Evaluation of Patients with Pectus Carinatum

Usefulness of 3-Dimensional Body Surface Scanning in the Evaluation of Patients with Pectus Carinatum

Surface topography index: a novel deformity severity assessment index for pectus excavatum

Handheld Optical System for Pectus Excavatum Assessment

Contact Info

Product

Resources

About