Assessment of quadriceps muscle cross-sectional area by ultrasound extended-field-of-view imaging

Abstract

This study aimed to test the validity and reliability of an extended-field-of-view ultrasonography (EFOV) method for quadriceps muscle cross-sectional area (CSA) assessment. The CSA was measured at 10, 20, 30, 40 and 50% of the distance from the superior border of the patella to the medial aspect of anterior superior iliac spine by EFOV imaging and compared to the CSA measured by computed tomography (CT). Validity was tested by intra-class correlation (ICC) between the two methods and intra- and inter-experimenter and inter-day reliability were also examined. The ICC computed between the two techniques ranged between 0.951 and 0.998 (P < 0.000), but the 95% confidence intervals of the ICCs were in the acceptable range only for 30, 40 and 50% sections (0.842-0.999, 0.943-0.997 and 0.992-0.999, respectively). The standard error of the EFOV technique when compared to CT was 2.4, 4.3, 1.2, 1.2 and 0.6%, for 10, 20, 30, 40 and 50% sections, respectively. The coefficient of variation, showing intra- and inter-experimenter reliability, ranged from 0.6 to 2.7%. ICCs computed to assess the inter-day reliability were between 0.982 and 0.998 (95% confidence interval 0.892-1). When CSA was compared between sections statistically significant differences were found between them, regardless of the imaging technique used. Small standard errors of the measurement and high ICCs with the small confidence intervals suggest that, at proximal and mid-thigh sections, EFOV is a valid and reliable method to measure quadriceps muscle size.

Reliability of biceps femoris and semitendinosus muscle architecture measurements obtained with ultrasonography

“…These studies have been important to determine a reproducibility of muscle architecture parameters which are measured very often in training and rehabilitation protocols. Concerning the lower limbs, reliability studies in vivo are described for the knee extensors (Lima et al, 2012;Noorkoiv et al, 2010) and gastrocnemius muscles (Legerlotz et al, 2010;Martins et al, 2012). The reliability of muscle architecture measurements of the knee flexors, using ultrasound, is less examined in vivo (Chleboun et al, 2001;Gomes et al, 2010;Timmins et al, 2015).…”

Confiabilidade das medidas de arquitetura do músculo Vasto Lateral pela ultrassonografia

“…A EM foi analisada em alguns estudos (ABE et al, 2000; ABE et al, 2001;KAWAKAMI et al, 2006) (BLAZEVICH et al, 2009), 80±9mm na região de 50% do comprimento da coxa em uma amostra de 10 homens (28±5 anos) (NOORKOIV et al, 2010) e 56,2±6,2mm em nosso estudo. Os valores do CF, neste estudo, foram menores provavelmente devido ao maior número de mulheres na amostra (N=10 mulheres e N=4 homens), visto que as mesmas geralmente possuem os CF inferiores aos homens, como O'Brien et al (2010), que observaram uma diferença significativa do CF do VL entre homens e mulheres (85,3mm e 72,2mm, respectivamente) na região distal do comprimento da coxa (borda superior da patela à espinha ilíaca ântero superior).…”

“…2013 218 , ou, in vivo, com técnicas de imagem, como a ressonância magnética (RM) (MIYATANI et al, 2004, AKIMA et al, 2000, VORONOV, 2003 e a ultrassonografia (US). A US vem ganhando importância por ser considerada uma técnica de medida confiável e de baixo custo para aquisição de imagens do tecido muscular, ósseo e adiposo (BEMBEM, 2002, MIYATANI et al, 2002, NOORKOIV et al, 2010, GOMES et al, 2010. Dos músculos que têm sido avaliados, destacam-se os dos membros inferiores como Gastrocnêmios (MORSE et al, 2005), Bíceps Femoral (CHLEBOUN et al, 2001), Reto Femoral (SEYMOUR et al, 2009, BEMBEM, 2002 e Vasto Lateral (VL).…”

“…Algumas variáveis individuais podem influenciar a precisão das medidas, como o relaxamento adequado da musculatura a ser analisada, o tempo transcorrido desde a última sessão de atividade física realizada e as características do músculo (GOMES et al, 2010). Existem estudos envolvendo a confiabilidade de algumas variáveis da arquitetura muscular através da US, como a EM dos extensores e flexores de joelho de atletas (KUBO et al, 2006) e indivíduos saudáveis (GOMES et al, 2010), CF do VL em indivíduos ativos (BLAZEVICH et al, 2007a, NOORKOIV et al, 2010, AP do VL em homens atletas (BRANCACCIO et al, 2008) e ASTA do Reto Femoral (BEMBEM, 2002) e VL através do ultrassom panorâmico (AHTIAINEN et al, 2010). No entanto, poucos estudos abordam a confiabilidade como objetivo principal e informam todos os dados estatísticos importantes como o coeficiente de variação (CV), erro típico da medida (ETM) e intervalo de confiança intraclasse (CCI) para revelar uma boa confiabilidade.…”

No association between passive material property and cross-sectional area in human hamstring

“…The probe was held perpendicular to the tissue and swept across the skin at equal pressure. This technique has been shown to provide valid CSA measurements 17) . Panoramic images were considered acceptable if the border and aponeurosis of each muscle were visible, solid, and continuous (Fig.…”