Invention and Clinical Application of an Oversleeve for Measuring Limb Volume in Postoperative Breast Cancer Patients.

BACKGROUND: Lymphedema is a common complication of breast cancer treatment, affecting 1/5 of breast cancer survivors, but there is no reliable way to detect subclinical lymphedema. OBJECTIVE: The purpose of this study was to determine the feasibility and reliability of using an oversleeve as a postoperative limb volume measurement tool in breast cancer patients. METHODS: Fifty patients were analyzed based on inclusion criteria. A body volume measurement kit was designed based on the drainage volume method and the circumference measurement method. Twenty-two normal healthy people were measured by the drainage volume (LV) and oversleeve measuring limb volume (OMLV) methods, so as to verify the accuracy of OMLV. Twenty-eight patients with lymphedema diagnosed by the circumdiameter measurement (CDM) method were measured with OMLV for comparison. The difference in measurements between OMLV and CDM was compared in 50 patients with early lymphedema diagnosed by the LV method. RESULTS: There was no significant difference between the sleeve method and the drainage volume method in the normal population (P = 0.74). All patients with lymphedema diagnosed by CDM met the diagnostic criteria by the OMLV method. In patients with early lymphedema diagnosed by LV, the diagnostic rate with OMLV was significantly higher than that with CDM (P = 0.008). CONCLUSION: Similar to LV in the diagnosis of lymphedema, OMLV can effectively improve the diagnostic rate of early lymphedema, providing a new option for the diagnosis and treatment of lymphedema.

Nutritional profile of cancer patients treated at an outpatient oncology center in the south region of Brazil

To evaluate the nutritional profile of cancer patients treated at an oncology center in South Brazil.This is a descriptive, exploratory and sectional study that was developed in a process that involved 100 patients aged between 18 and 75 years old, suffering from cancer.The anthropometric variables studied were weight, height, Body Mass Index (BMI), arm circumference (AC), arm muscle circumference (AMC),triceps skinfold (TSF) and corrected arm muscle area (cAMA). For subjective nutritional assessment, we used the Patient-Generated Subjective Global Assessment (PG-SGA). Nearly half of the patients evaluated had a critical need for nutritional intervention. There was a statistically significant association between cAMA and marital status, age and gender; between AC and age, gender and staging; between AMC and staging; between BMI and marital status and age; and between TSF and marital status. Patients diagnosed with IV stage had the lowest values for nutritional variables. There was no significant association between nutritional status of patients obtained by the PG-SGA instrument and sociodemographic characteristics. Malnutrition should be diagnosed as soon as possible,aiming at early intervention and improving survival and quality of life. Therefore, early nutritional assessment in cancer patients is required, combining subjective and objective methods.

Overview of tools for the measurement of the orbital volume and their applications to orbital surgery.

There are numerous applications in craniofacial surgery with orbital volume (OV) modification. The careful management of the OV is fundamental to obtain good esthetic and functional results in orbital surgery. With the growth of computer-aided design - computer-aided manufacturing (CAD-CAM) technologies, patient-specific implants and custom-made reconstruction are being used increasingly. The precise measurement of the OV before surgery is becoming a necessity for craniofacial surgeons. There is no consensus on orbital volume measurements (OVMs). Manual segmentation of computed tomography (CT) images is the most used method to determine the OV, but it is time-consuming and very sensitive to operator errors. Here, we describe the various methods of orbital volumetry validated in the literature that can be used by surgeons in preoperative planning of orbital surgery. We also describe the leading software employed for these methods and discuss clinical use (posttraumatic enophthalmos prediction and orbital reconstruction) in which OVMs are important.

Precision and reliability of tape measurements in the assessment of head and neck lymphedema.

OBJECTIVES: Tape measurement is a commonly used method in the clinical assessment of lymphedema. However, few studies have assessed the precision and reliability of tape measurement in assessing head and neck lymphedema. This study aimed to evaluate the reliability and precision of using tape measurement, performed by different evaluators, for the assessment of head and neck lymphedema. METHODS: This study was conducted at a tertiary care cancer hospital. Between January and December 2019, 50 patients with head and neck cancers and 50 normal subjects were enrolled. Each subject was examined using tape measurements for 7 point-to-point distances of facial landmarks, 3 circumferences of the neck (upper, middle, and lower), and 2 circumferences of the face (vertical and oblique) by 3 random examiners. Test precision and reliability were assessed with the within-subject standard deviation (Sw) and intra-class correlation coefficient (ICC), respectively. RESULTS: Overall, the standard deviation of the tape measurements varied in the range of 4.6 mm to 18.3 mm. The measurement of distance between the tragus and mouth angle (Sw: 4.6 mm) yielded the highest precision, but the reliability (ICC: 0.66) was moderate. The reliabilities of neck circumference measurements (ICC: 0.90-0.95) were good to excellent, but the precisions (Sw: 8.3-12.3 mm) were lower than those of point-to-point facial measurements (Sw: 4.6-8.8 mm). CONCLUSIONS: The different methods of tape measurements varied in precision and reliability. Thus, clinicians should not rely on a single measurement when evaluating head and neck lymphedema.

Calf circumference: clinical validation for evaluation of muscle mass in the elderly / Circunferencia de la pantorrilla: validación clínica para evaluación de masa muscular en mayores / Circunferência da panturrilha: validação clínica para avaliação de massa muscular em idosos

ABSTRACT Objective: To validate calf circumference as a technology for assessing muscle mass in the elderly. Method: Cross-sectional study with 132 elderly people from Goiânia, Goiás, Brazil. Decreased muscle mass was determined by the skeletal muscle mass index (IME) using Dual Energy X-Ray Absortometry (DEXA). The cutoff circumferences (CC) cutoff points to indicate muscle mass decrease were estimated by ROC curve, sensitivity, specificity and accuracy. Results: The most accurate cut-off points for detecting decreased muscle mass in the elderly were 34 cm for men (sensitivity: 71.5%, specificity: 77.4%) and 33 cm for women (sensitivity: 80.0%; specificity: 84.6%). Conclusion: CC can be used as a measure for early identification of muscle mass decrease in routine evaluations of the elderly in primary care.

RESUMEN Objetivo: Validar la circunferencia de la pantorrilla como tecnología de evaluación de masa muscular en mayores. Método: Estudio transversal con 132 mayores de Goiânia, Goiás, Brasil. La disminución de masa muscular fue determinada por el índice de masa muscular esquelética (IME) por medio de la Absorciometría por Rayos-X de Dupla Energía (DEXA). Los puntos de corte de la medida de circunferencia de la pantorrilla (CP) para indicar disminución de masa muscular fueron estimados por medio de curva ROC, sensibilidad, especificidad y precisión. Resultados: Los puntos de corte con mejor precisión para detección de masa muscular disminuida en mayores fue 34 cm para hombres (sensibilidad: 71,5%; especificidad: 77,4%) y 33 cm en mujeres (sensibilidad: 80,0%; especificidad: 84,6%). Conclusión: La CP puede ser utilizada como medida para identificación precoz de disminución de masa muscular en evaluaciones de rutina de mayores en la atención primaria.

RESUMO Objetivo: Validar a circunferência da panturrilha como tecnologia de avaliação de massa muscular em idosos. Método: Estudo transversal com 132 idosos de Goiânia, Goiás, Brasil. A diminuição de massa muscular foi determinada pelo índice de massa muscular esquelética (IME) por meio da Absorciometria por Raios-X de Dupla Energia (DEXA). Os pontos de corte da medida de circunferência da panturrilha (CP) para indicar diminuição de massa muscular foram estimados por meio de curva ROC, sensibilidade, especificidade e acurácia. Resultados: Os pontos de corte com melhor acurácia para detecção de massa muscular diminuída em idosos foi 34 cm para homens (sensibilidade: 71,5%; especificidade: 77,4%) e 33 cm em mulheres (sensibilidade: 80,0%; especificidade: 84,6%). Conclusão: A CP pode ser utilizada como medida para identificação precoce de diminuição de massa muscular em avaliações de rotina de idosos na atenção primária.

Medição das mamas com o Adobe Photoshop® / Breast measurement using Adobe Photoshop®

Introdução: Com a globalização e melhora dos meios digitais e, consequentemente, a crescente utilização de fotografias digitais, faz-se necessária a criação de métodos de mensuração confiáveis. Na prática clínica, a medida direta utilizando-se fita métrica, régua e compasso é mais comumente utilizada. Porém, existem fatores intrínsecos (relevos corporais) e extrínsecos (colaboração do paciente ou movimentos respiratórios) que podem influenciar nos dados obtidos. A fotografia e os softwares gráficos podem ser uma alternativa precisa, mais cômoda e reprodutível à medida direta. O objetivo é demonstrar a forma de medir as mamas pelo software Adobe Photoshop. Métodos: Foram descritas a posição das voluntárias, a captação das imagens, calibração do software até a obtenção mensuração final das mamas. Em 40 mulheres voluntárias, com idade entre 18 e 60 anos, foram demarcados pontos sobre a região mamária e braços em posição frontal. A união destes pontos em cada hemicorpo formou 7 segmentos lineares, 1 angular e 1 segmento mediano comum a ambos os hemicorpos. Essas fotografias foram avaliadas no arquivo RAW, por 3 observadores, com auxílio do software Adobe Photoshop CS6®. Resultados: O Photoshop CS6® demonstrou ser eficaz na mensuração das mamas no arquivo RAW. Conclusão: O Photoshop® apresentou precisão nas medidas e ser factível para mensuração das mamas.

Introduction: With the globalization and improvement of digital media and, consequently, the increasing use of digital photography, it is necessary to create reliable measurement methods. In clinical practice, direct measurement using tape measure, ruler, and compass, is most commonly used. However, there are intrinsic (body contour) and extrinsic (patient collaboration or respiratory movements) factors that may influence the data obtained. Photography and graphics software can be an accurate, comfortable, and reproducible alternative to direct measurement. The objective is to demonstrate how to perform breast measurement using Adobe Photoshop software. Methods: Participants were described the position to assume. Imaging capturing techniques and software calibration were performed in order to obtain the final breast measurement. Markers were placed on the breast and arms of 40 women volunteers aged 18 to 60 years using an anterior view. The union of these markers in each hemibody resulted in seven linear segments, one angle and one transverse segment common to both hemibodies. These photographs were evaluated as a RAW file, by 3 evaluators, assisted by Adobe Photoshop CS6® software. Results: Photoshop CS6® proved effective in the breast measurement using RAW files. Conclusion: Photoshop® showed precision and effectiveness for breast measurement.

Conhecendo os tipos de arquivo de fotografia JPEG e RAW utilizados em pesquisa / Getting to know the types of JPEG and RAW photo files used in research

Introdução: Mensurações por antropometria indireta são importantes na área de pesquisa, mas também podem se tornar significativas na área jurídica, como instrumento quantitativo de avaliação pré e pós-operatória. O tipo de arquivo utilizado determina variações na manipulação das imagens. O objetivo é evidenciar tipos de arquivos de imagens utilizados na fotografia digital que será utilizada na pesquisa. Métodos: Foram realizadas mensurações das mamas em 80 hemitórax de 40 mulheres voluntárias. Foram demarcados pontos sobre a região mamária e braços em posição frontal. A união destes pontos em cada hemicorpo formou sete segmentos lineares, uma medida angular e um segmento mediano comum a ambos os hemicorpos. Essas fotografias foram avaliadas em arquivos RAW e JPEG de alta definição, por 3 observadores, com auxílio do software Adobe Photoshop CS6®. Resultados: Os arquivos RAW e JPEG demonstraram serem eficazes na mensuração das mamas. Conclusão: Os arquivos RAW e JPEG apresentaram medidas semelhantes na mensuração das mamas femininas.

Introduction: Indirect anthropometric measurements are important in research but may also be significant in the legal area as a quantitative instrument for pre- and post-operative evaluation. The type of file used determines variations in the manipulation of the images. The objective is to study the types of image files used in digital photography that will find utility in research. Methods: The breasts of 40 women volunteers were measured in 80 hemithoraces, and the mammary region and arms were marked in the frontal position. The union of these points in each hemithorax formed seven linear segments, an angular measure, and a median segment common to both hemithoraces. These photographs were evaluated as high definition RAW and JPEG files by three observers using Adobe Photoshop CS6® software. Results: RAW and JPEG files were shown to be effective in breast measurement. Conclusion: RAW and JPEG files presented similar results in the measurement of female breasts.

Precisão das equações preditivas de peso corporal e altura: proposta de um percentual de ajuste / Precision of the body weight and stature predictive equations: proposition of an adjustment percentage

Introdução: As equações preditivas de peso corporal e altura foram criadas tendo como referência indivíduos norte-americanos, portanto, diante da distinção de populações, torna-se necessário que sejam analisadas.Dessa forma, o objetivo do estudo foi analisar as equações preditivas de peso e altura, propondo um percentual de ajuste para adequação das mesmas. Método: Estudo transversal realizado em um hospital universitário do Nordeste brasileiro. Foram selecionados pacientes com idade entre 19 e 80 anos, internados nas clínicas médica e cirúrgica do referido hospital. Os dados antropométricos aferidos foram peso atual, altura, circunferência do braço e altura do joelho. Para comparação entre medidas estimadas e aferidas, foi utilizado o teste t pareado de Student e, para as variáveis categóricas, o teste do Qui-quadrado de Pearson. Adotou-se como nível de significância estatística o valor de p<0,05. Resultados: Ao comparar os resultados das medidas aferidas com os das equações preditivas, foi observada uma subestimação nas medidas estimadas de peso (-3,3%), altura, (-4,5%), levando à subestimação na taxa metabólica basal (-6%) e necessidades energéticas (-6%) e uma superestimação nos valores de Índice de Massa Corporal (+5%) em relação às medidas aferidas, resultando numa subestimação no total de pacientes com baixo peso e eutróficos e superestimação daqueles com sobrepeso e obesidade. Conclusão: A análise da precisão das equações preditivas nos pacientes do estudo demonstrou que houve subestimação no total de indivíduos com baixo peso e eutróficos e superestimação daqueles com sobrepeso e obesidade. Baseado nos percentuais de subestimação encontrados ao comparar as medidas estimadas com as aferidas nos pacientes da amostra, sugere-se um ajuste de 3,3% no peso e 4,5% na altura para correção das equações preditivas.(AU)

Introduction: The predictive equations of body weight and stature were created with reference to American individuals, therefore, before the distinction of populations, it becomes necessary to be analyzed. Thus, the objective of the study was to analyze the predictive equations of weight and stature, proposing a percentage of adjustment to fit them. Methods: Cross-sectional study carried out in a university hospital in Brazilian northeastern. Patients aged between 19 and 80 years old admitted to the medical and surgical clinics of the referred hospital were selected. The anthropometric data measured were current weight, stature, arm circumference, calf circumference and knee height. The paired t-test of Student was used to compare the estimated and measured measurements. For the categorical variables, the Pearson Chi-square test was used. The level of statistical significance was set at p<0,05. Results: When comparing the results of the measures measured with those of the predictive equations, there was an underestimation in the estimated measures of weight (-3.3%), stature (-4.5%), leading to a underestimation of basal metabolic rate (-6%) and estimated energy requirements (-6%) and an overestimation in the values of Body Mass Index (+5%) in relation to the measures measured, resulting in an underestimation in the total of patients with low weight and eutrophic, and overestimation of those with overweight/ obesity. Conclusion: The analysis of the precision of the predictive equations in the study patients showed that there was an underestimation in the total of individuals with low weight and eutrophic and overestimation of those with overweight and obesity. Based on the underestimation percentages found when comparing the estimated measures with those measured in the patients in the sample, an adjustment of 3.3% in weight and 4.5% in stature for correcting the predictive equations is suggested.(AU)

The modified percent depth: Another step toward quantifying severity of pectus excavatum without cross-sectional imaging.

INTRODUCTION: Current approaches to quantifying the severity of pectus excavatum require internal measurements based on cross-sectional imaging. This study evaluated the modified percent depth (MPD), a novel index of severity that can be obtained with external measurements, potentially avoiding the need for cross-sectional imaging. METHODS: Patients undergoing surgical repair of pectus excavatum (pectus group), and those undergoing cross-sectional imaging for unrelated reasons (control group), between 2010 and 2016 were included. The MPD of the deformity was calculated using external (i.e. skin surface to skin surface) measurements from the radiographic images. The same external measurements were taken using chest calipers on a subset of these patients in the outpatient clinic. The optimal threshold for MPD that defined severe pectus deformity was derived from receiver-operator characteristic (ROC) analysis. Sensitivity and specificity of the MPD was compared with that of the Haller Index (HI) and Correction Index (CI). RESULTS: There were 92 children (49 pectus, 43 controls) included. The median MPD was 20.2% and 4.2% for pectus and control patients, respectively (p<0.0001). An MPD cutoff of 10% optimally discriminated between severe pectus patients and controls by ROC analysis. An MPD of >10% had 98% sensitivity and 98% specificity for severe pectus deformity. Sensitivity and specificity were respectively 93% and 93% for HI >3.25, and 100% and 79% for CI >10. CONCLUSION: An MPD >10% performs slightly better than the HI and CI in distinguishing patients with severe pectus deformities. This novel measurement approach offers distinct advantages over existing indices, in that it does not require cross-sectional imaging and can be done using chest calipers in the office setting. Further studies with larger sample size are needed to verify reproducibility of the technique. LEVEL OF EVIDENCE: Level II, Study of Diagnostic Test.

[Benefits of using the cutometer to evaluate the effectiveness of skin treatments in plastic and maxillofacial surgery]. / Intérêt du cutomètre pour l'évaluation de l'efficacité des traitements cutanés en chirurgie plastique et maxillo-faciale.

INTRODUCTION: Evaluating skin properties is often too subjective. Using the cutometer allows one to take objective measures of certain mechanic properties of the skin such as visco-elasticity. The aim of this article is to evaluate through a review of existing literature the advantages and the limits of the cutometer and to propose an improvement. MATERIAL AND METHODS: The selection of articles has been conducted with the PubMed database in order to identify all publications concerning the cutometer up until September 2013. The analysis criteria were: (1) quantitative distribution of articles from the first publication until today; (2) qualitative distribution over the various medical fields. The articles have been organized in 3 groups: medical, surgical and burns; (3) list of biases in the interpretation of results and limits of this measuring tool. RESULTS: One hundred and twenty-nine publications have been included. The first article regarding the cutometer was published in 1994. We observe an increase in the number of publications after 2005. Most of the articles were published in medical journals of dermatology or cosmetology (83%), only 9% of articles have been published in burn study journals and 8% in surgical journals. The pressure applied by the experimenter constitutes the main measure bias. DISCUSSION: The use of an external device maintaining the probe with an invariable pressure corresponding to its own weight enables more reliable results all the while limiting the inter- and intra-individual variability.

Joint gap measurement in total knee arthroplasty using a tensor device with the same articulating surface as the prosthesis.

BACKGROUND: We developed a new tensor to measure the joint gap throughout knee flexion during total knee arthroplasty (TKA). This tensor has the same articular shape as that of the tibial liner, including the post structure and the curvature of femorotibial articular surface, to measure the gap intraoperatively under the same conditions as after TKA. The present study aimed to examine the precision of the new tensor for gap measurement after implantation. METHODS: We performed TKA using the modified gap technique in four cadaveric knees and measured the gaps using the new tensor. The intra-observer and inter-observer error of the tensor was analyzed using 168 measurements of the gaps as determined at least twice by two surgeons. In addition, the gaps in rotating-platform posterior-stabilized TKA were measured at seven positions with the knee bending from extension to full flexion. RESULTS: The inter-observer and intra-observer errors were 0.8 and 0.3 mm, respectively, indicating precise and reproducible gap measurement. The gaps before implantation in reduced patellar position were 12.1 mm at extension and 12.5 mm at 90° flexion. The gaps after implantation were 9.1, 12.9, 13.1, 13.5, 13.8, 13.3, and 10.1 mm at 0°, 30°, 45°, 60°, 90°, 120°, and full flexion, respectively. CONCLUSIONS: The new tensor provides precise and reproducible measurements. Although the joint gap before implantation was parallel and equal at extension and 90° flexion, the joint gap after implantation was variable throughout knee flexion. This feature of the gap should be considered during the operation.

Using the Microsoft Kinect for patient size estimation and radiation dose normalization: proof of concept and initial validation.

Monitoring patients' imaging-related radiation is currently a hot topic, but there are many obstacles to accurate, patient-specific dose estimation. While some, such as easier access to dose data and parameters, have been overcome, the challenge remains as to how accurately these dose estimates reflect the actual dose received by the patient. The main parameter that is often not considered is patient size. There are many surrogates-weight, body mass index, effective diameter-but none of these truly reflect the three-dimensional "size" of an individual. In this work, we present and evaluate a novel approach to estimating patient volume using the Microsoft Kinect™, a combination RGB camera-infrared depth sensor device. The goal of using this device is to generate a three-dimensional estimate of patient size, in order to more effectively model the dimensions of the anatomy of interest and not only enable better normalization of dose estimates but also promote more patient-specific protocoling of future CT examinations. Preliminary testing and validation of this system reveals good correlation when individuals are standing upright with their arms by their sides, but demonstrates some variation with arm position. Further evaluation and testing is necessary with multiple patient positions and in both adult and pediatric patients. Correlation with other patient size metrics will also be helpful, as the ideal measure of patient "size" may in fact be a combination of existing metrics and newly developed techniques.

[Application of a device for determination of the transplant length during operation of the aorta-coronary bypass].

Determination of the necessary length of the bypass is one of the principal stages of operation of the aorta-coronary bypass. The greatest difficulty of the determination of the bypass length is the first-priority applying of proximal anastomoses. It requires the surgeon to have great experience, the operation to be longer. It also makes it necessary to prepare a conduit of deliberately excessive length. A device is proposed for the determination of the necessary bypass length during operation of aorta-coronary bypass consisting of a crocodile grip with a fixed to it polymer tube.

Biomechanical assessment of varus-valgus range of motion of normal elbow joint using prototype measuring device.

INTRODUCTION: Elbow joint stability is provided by the medial and lateral collateral ligaments, joint surface alignment, and the joint capsule. The contribution of the joint capsule is relatively minor and varies with the position of the joint. The normal range of forearm abduction and adduction in the elbow joint is estimated to be between 5 and 10°. The aim of the paper was to determine precisely the physiological range of elbow joint motion in the frontal plane (laxity), which, apart from the knowledge gained, will provide a means to assess the effect of the surgical treatment of elbow joint contractures by comparing the stability of operated and healthy joints. MATERIAL AND METHODS: The measurements were carried out using UB-01, a prototype device produced by ANT Polska, in a group of 52 healthy volunteers. RESULTS: The mean valgus and varus deviation of the elbow joint was 11.2° (6.4° 16.1°) and 6.6° (3° 10.7°), respectively. The mean degree of elbow joint laxity was 17.8° (10.6° 26.5°). The difference in laxity between two opposite elbow joints in the same person was, on average, 1.2° (0.1° 3.8°). In healthy persons, the amplitude of deviation for both elbows is significantly smaller than 2°. CONCLUSIONS: 1. There are major differences in elbow joint laxity between individuals. 2. Nevertheless, laxity values of two elbow joints in the same individual are very similar. This observation allows for the healthy elbow to be treated as a reference while assessing the affected joint's stability in a patient following conventional surgery for elbow joint contracture.

Postural assessment software (PAS/SAPO): validation and reliabiliy

OBJECTIVE: This study was designed to estimate the accuracy of the postural assessment software (PAS/SAPO) for measurement of corporal angles and distances as well as the inter- and intra-rater reliabilities. INTRODUCTION: Postural assessment software was developed as a subsidiary tool for postural assessment. It is easy to use and available in the public domain. Nonetheless, validation studies are lacking. METHODS: The study sample consisted of 88 pictures from 22 subjects, and each subject was assessed twice (1 week interval) by 5 blinded raters. Inter- and intra-rater reliabilities were estimated using the intraclass correlation coefficient. To estimate the accuracy of the software, an inanimate object was marked with hallmarks using pre-established parameters. Pictures of the object were rated, and values were checked against the known parameters. RESULTS: Inter-rater reliability was excellent for 41 percent of the variables and very good for 35 percent. Ten percent of the variables had acceptable reliability, and 14 percent were defined as non-acceptable. For intra-rater reliability, 44.8 percent of the measurements were considered to be excellent, 23.5 percent were very good, 12.4 percent were acceptable and 19.3 percent were considered non-acceptable. Angular measurements had a mean error analisys of 0.11°, and the mean error analisys for distance was 1.8 mm. DISCUSSION: Unacceptable intraclass correlation coefficient values typically used the vertical line as a reference, and this may have increased the inaccuracy of the estimates. Increased accuracies were obtained by younger raters with more sophisticated computer skills, suggesting that past experience influenced results. CONCLUSION: The postural assessment software was accurate for measuring corporal angles and distances and should be considered as a reliable tool for postural assessment.

3D surface imaging in medicine: a review of working principles and implications for imaging the unsedated child.

This article provides an overview of the methods used for optical surface imaging during the last 30 years, with the primary focus on the imaging of the unsedated child. The goal is to provide the reader with an overview of the working methods behind the published articles. This will enable the reader to better interpret current data and decide if a certain approach is suitable for their particular research question.

Guía técnica: Elaboración y mantenimiento de infantómetros y tallímetros de madera / Technical Guidance: Development and maintenance of height boards and wooden infantómetros

El presente documento de referencia establece los parámetros técnicos sobre el diseño, elaboración, uso y mantenimiento de infantómetros y tallímetros de uso en los establecimientos de salud, instituciones educativas e investigación. Asimismo, recoge la experiencia de UNICEF a través del proyecto "Buen Inicio" y el Centro Nacional de Alimentación y Nutrición a través de actividades de capacitación en medición del peso y la talla, tomando como base las especificaciones técnicas recomendadas por las Naciones Unidas

Medidas clínicas da coxa e da perna por meio de reparos anatômicos e correlação com o comprimento radiográfico em crianças entre 7 a 12 anos da cidade de Londrina/Paraná, Brasil / Clinical assessment of the thigh and leg with the use of anatomic repairs and correlation with the radiographic evaluation in children between 7 and 12 years of age in the city of Londrina, state of Parana, Brazil

Assimetrias de comprimento dos MMII são comuns na população, porém apenas quando maiores que 1,5 cm deixam deser um problema estético e podem levar a alterações funcionais. Objetivo: Estabelecer uma correlação entre as medidas clínicas e radiográficasda coxa e da perna em crianças entre 7-12 anos, sendo esta obtida através da escanometria. Material e Método: Avaliaçãoprospectiva do comprimento da coxa e perna de 300 crianças entre 7-12 anos, de ambos os sexos, através da medida clínica com fitamilimetrada e radiográfica pela escanometria. A correlação entre as medidas foi feita através da regressão linear simples. Resultadoe discussão: Através da análise estatística verificou-se que há diferença estatisticamente significativa entre as medidas clínicas e radiográficasde coxa e perna (p<0,05). Por este motivo foi feita a regressão linear simples entre os valores encontrados e verificou-se aexistência de correlação entre elas e definiu-se uma equação de correlação. Com base nesta equação é possível que a medida radiográficaseja pressuposta a partir da medida clínica. Conclusão: As medidas clínicas e radiográficas são estatisticamente diferentes, porém existeuma correlação entre elas, permitindo que seja estabelecida uma fórmula que possibilita a predição das medidas radiográficas a partirdos valores obtidos clinicamente.

Limb length discrepancies are common in the general population, but they only cause functional problems when they areover 1.5 cm. Objective: To make a correlation between clinical and radiological assessments of children´s thigh and leg lengths between7-12 yrs, through slit scanogram measurement. Method: Prospective study of limb length in 300 children between 7-12 yrs, of bothsexes, through clinical measurement using a measuring tape and radiographic assessment using the supine slit scanogram technique. Thecorrelation between the assessments was made by simple linear regression. Results and discussion: The statistical analysis showed thatthere are differences between the clinical and the radiographic assessments (p<0.05). The simple linear regression was used to verifythe correlation and to define the correlation equation. Using this equation, it is possible to define the radiographic values based on theclinical assessment. Conclusion: The clinical and radiographic assessments are statistically different; however, there is