Apparent diffusion coefficient of normal adrenal glands

Sara Reis Teixeira; Paula Condé Lamparelli Elias; Andrea Farias de Melo Leite; Tatiane Mendes Gonçalves de Oliveira; Valdair Francisco Muglia; Jorge Elias Junior; Instituto de Medicina Integral Professor Fernando Figueira de Pernambuco, Brazil

doi:10.1590/0100-3984.2015.0045

Back

Apparent diffusion coefficient of normal adrenal glands

Journal article

Open access

Peer reviewed

Apparent diffusion coefficient of normal adrenal glands

Sara Reis Teixeira, Paula Condé Lamparelli Elias, Andrea Farias de Melo Leite, Tatiane Mendes Gonçalves de Oliveira, Valdair Francisco Muglia, Jorge Elias Junior and Instituto de Medicina Integral Professor Fernando Figueira de Pernambuco, Brazil

Radiologia brasileira, Vol.49(6), pp.363-368

11/01/2016

DOI: 10.1590/0100-3984.2015.0045

PMID: 28057963

Files and links (1)

url

https://doi.org/10.1590/0100-3984.2015.0045View

Published (Version of record) Open Access

Abstract

Objective: To assess the feasibility and reliability of apparent diffusion coefficient (ADC) measurements of normal adrenal glands. Materials and methods: This was a retrospective study involving 32 healthy subjects, divided into two groups: prepubertal (PreP, n = 12), aged from 2 months to 12.5 years (4 males; 8 females); and postpubertal (PostP, n = 20), aged from 11.9 to 61 years (5 males; 15 females). Diffusion-weighted magnetic resonance imaging (DW-MRI) sequences were acquired at a 1.5 T scanner using b values of 0, 20, 500, and 1000 s/mm2. Two radiologists evaluated the images. ADC values were measured pixel-by-pixel on DW-MRI scans, and automatic co-registration with the ADC map was obtained. Results: Mean ADC values for the right adrenal glands were 1.44 × 10-3 mm2/s for the PreP group and 1.23 × 10-3 mm2/s for the PostP group, whereas they were 1.58 × 10-3 mm2/s and 1.32 × 10-3 mm2/s, respectively, for the left glands. ADC values were higher in the PreP group than in the PostP group (p < 0.05). Agreement between readers was almost perfect (intraclass correlation coefficient, 0.84-0.94; p < 0.05). Conclusion: Our results demonstrate the feasibility and reliability of performing DW-MRI measurements of normal adrenal glands. They could also support the feasibility of ADC measurements of small structures.

Magnetic Resonance Imaging

Adrenal glands

Diffusion magnetic resonance imaging

Details

Title: Subtitle: Apparent diffusion coefficient of normal adrenal glands
Creators: Sara Reis Teixeira - Universidade de Ribeirão Preto
Paula Condé Lamparelli Elias - Clinics Hospital of Ribeirão Preto
Andrea Farias de Melo Leite - Instituto de Medicina Integral Professor Fernando Figueira
Tatiane Mendes Gonçalves de Oliveira - Clinics Hospital of Ribeirão Preto
Valdair Francisco Muglia - Universidade de Ribeirão Preto
Jorge Elias Junior - Radiology Division, Department of Internal Medicine, Faculdade de Medicina de Ribeirão Preto da Universidade de São Paulo (FMRP-USP), Ribeirão Preto, SP, Brazil
Instituto de Medicina Integral Professor Fernando Figueira de Pernambuco, Brazil
Resource Type: Journal article
Publication Details: Radiologia brasileira, Vol.49(6), pp.363-368
DOI: 10.1590/0100-3984.2015.0045
PMID: 28057963
ISSN: 0100-3984
eISSN: 0100-3984
Number of pages: 6
Language: English
Date published: 11/01/2016
Academic Unit: Radiology
Record Identifier: 9985214170602771

Metrics

1 Record Views