EOS® imaging: Concept and current applications in spinal disorders

Garg, Bhavuk; Mehta, Nishank; Bansal, Tungish; Malhotra, Rajesh

doi:10.1016/j.jcot.2020.06.012

Cited by 38 publications

(40 citation statements)

References 48 publications

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“…Ideally, the imaging modality enabling clear visualization of the T1 upper endplate in an upright position, such as EOS ® (EOS ® imaging, Paris, France), is generally desired [21]. EOS ® is the EOS imaging system, a novel technique that allows for acquiring images of the body or of body sections in standing position and under normal weight-bearing conditions [22]. However, many facilities do not have access to EOS, and researchers have to exclude cases in which the T1 upper endplate is invisible.…”

Section: Discussionmentioning

confidence: 99%

Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images

Ito

Nakashima

Matsumoto

et al. 2022

JCM

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Introduction: The T1 slope is important for cervical surgical planning, and it may be invisible on radiographic images. The prevalence of T1 invisible cases and the differences in demographic and radiographic characteristics between patients whose T1 slopes are visible or invisible remains unexplored. Methods: This pilot study aimed to evaluate the differences in these characteristics between outpatients whose T1 slopes were visible or invisible on radiographic images. Patients (n = 60) who underwent cervical radiography, whose T1 slope was confirmed clearly, were divided into the visible (V) group and invisible (I) group. The following radiographic parameters were measured: (1) C2-7 sagittal vertical axis (SVA), (2) C2-7 angle in neutral, flexion, and extension positions. Results: Based on the T1 slope visibility, 46.7% of patients were included in group I. The I group had significantly larger C2-7 SVA than the V group for males (p < 0.05). The C2-7 SVA tended to be larger in the I group, without significant difference for females (p = 0.362). Discussion: The mean C2-7 angle in neutral and flexion positions was not significantly different between the V and I groups for either sex. The mean C2-7 angle in the extension position was greater in the V group. The T1 slope was invisible in males with high C2-7 SVA.

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Section: Discussionmentioning

confidence: 99%

Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images

Ito

Nakashima

Matsumoto

et al. 2022

JCM

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“…Clinical assessment by a speech therapist was performed if aspirations were suspected according to caregiver reports. If that clinical examination revealed any abnormalities, it was followed by video fluoroscopy to confirm or rule out aspirations. Spinal deformities that were assessed by a skilled pediatric orthopedic surgeon who performed both physical evaluation and EOS imaging 14 based upon measurements of the deformity according to the Cobb method.…”

Section: Methodsmentioning

confidence: 99%

“…Spinal deformities that were assessed by a skilled pediatric orthopedic surgeon who performed both physical evaluation and EOS imaging 14 based upon measurements of the deformity according to the Cobb method.…”

Section: Methodsmentioning

confidence: 99%

Nonrespiratory complications of nusinersen‐treated spinal muscular atrophy type 1 patients

Lavie

Rochman

Sagi

et al. 2022

Pediatric Pulmonology

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Background Emergence of new treatments for spinal muscular atrophy type 1 (SMA1) has led to dramatic improvements in respiratory failure and survival. However, these “treated” patients sustain major problems in other organ systems, which may directly or indirectly affect their respiratory function. We observed three main nonrespiratory manifestations in these patients comprised of facial deformities, feeding problems, and spinal deformities. Objective To investigate these three main sequelae in nusinersen‐treated SMA1 patients. Methods Data on nusinersen‐treated SMA1 patients were prospectively collected throughout a 3‐year period, with special focus upon nonrespiratory features of the disease. Results Twenty nusinersen‐treated SMA1 patients were included (eight males, median age 13.5 months, interquartile range: 4–56.2 months), among whom 17 survived after 3 years of follow‐up. At follow‐up, 15 (88%) patients were diagnosed with facial weakness, hypoplasia, or deformity. All but one patient (94%) were fed invasively by percutaneous endoscopic gastrostomy or nasogastric tube feeding. Four patients (25%) had maintained oral feeding in parallel to gastrostomy feeding and had clinical and radiologic evidence of aspirations. Fifteen (88%) patients were diagnosed with scoliosis, of whom seven had undergone or were scheduled to undergo corrective surgery. Conclusions Nusinersen‐treated SMA1 patients may sustain facial deformities, feeding problems, and severe scoliosis, all of which affect their respiratory system. Strict surveillance of these complications is essential to avoid further respiratory morbidity.

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“…It involves sending ionizing radiation (X-rays) through the body to produce a two-dimensional (2D) exposed digital image [6]. The EOS ® imaging system offers the possibility of obtaining 3D information from two X-ray images, by placing two pairs of tubes and detectors orthogonal to each other [7]. An axial computed tomography (CT) scan uses a rotating X-ray tube to provide multiple cross-sectional images of the body, which allows a 3D reconstruction of human bodies.…”

Section: Introductionmentioning

confidence: 99%

Determination of the 3D Human Spine Posture from Wearable Inertial Sensors and a Multibody Model of the Spine

Michaud

Lugrís

Cuadrado

2022

Sensors

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Determination of spine posture is of great interest for the effective prevention, evaluation, treatment and evolution monitoring of spinal disorders. Limitations of traditional imaging systems, including cost, radiation exposure (for X-ray based systems), projection volume issues and subject positioning requirements, etc., make non-invasive motion assessment tools effective alternatives for clinical and non-clinical use. In this work, a procedure was developed to obtain a subject-specific multibody model of the spine using either inertial or optical sensors and, based on this multibody model, to estimate the locations and orientations of the 17 vertebrae constituting the thoracolumbar spine. The number and calibration of the sensors, angular offsets, scaling difficulties and gender differences were addressed to achieve an accurate 3D-representation of the spine. The approach was validated by comparing the estimated positions of the sensors on 14 healthy subjects with those provided by an optical motion capture system. A mean position error of lower than 12 mm was obtained, thus showing that the proposed method can offer an effective non-invasive tool for the assessment of spine posture.

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EOS® imaging: Concept and current applications in spinal disorders

Cited by 38 publications

References 48 publications

Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images

Differences in Demographic and Radiographic Characteristics between Patients with Visible and Invisible T1 Slopes on Lateral Cervical Radiographic Images

Nonrespiratory complications of nusinersen‐treated spinal muscular atrophy type 1 patients

Determination of the 3D Human Spine Posture from Wearable Inertial Sensors and a Multibody Model of the Spine

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