Breast glandularity in malaysian women from a full-field digital mamamography system

Noriah Jamal

Noriah Jamal

Keywords: Breast glandularity, Full Field Digital Mammography, Ethnic Groups

Abstract

This study is undertaken to estimate breast glandularity in Malaysian women from a Full-Field Digital mammography System. This study involved 223 women (Malay=100; Chinese=101 and Indian=22) underwent voluntary screening mammography at Breast Centre, International Islamic University Malaysia (IIUM Breast Centre) for the first quarter of year 2009. Those are women aged between 31 to 69 years old (median age, 49 years). Data on miliampre-seconds, kilovoltage, and compressed breast thickness for each craniocaudal view are used to estimate breast glandularity for an individual breast. Breast glandularity is calculated using the fitted equation reported earlier. The difference in breast glandularity among ethnic groups was tested for significance using the nonparametric Kruskal-Wallis test. The average breast glandularity estimated in our study, using FFDM system is 52.94± 27.03%. No significant difference was seen in breast glandularity among the ethnic groups (p>0.05, Kruskal-Wallis test). Breast glandularity decreases as age increases, up to 60 years old.

ABSTRAK

Kajian ini dijalankan untuk menilai glandulariti payudara wanita di Malaysia menggunakan satu System Digital Mamografi Berbidang Penuh. Kajian ini melibatkan 223 wanita (Melayu=100; China=101 dan India=22) yang telah menjalani ujian saringnpenyaringan mamografi sukarela di Pusat Payudara, Universiti Islam Antarabangsa Malaysia (Pusat Payudara IIUM) untuk suku pertama tahun 2009. Mereka adalah wanita yang berumur diantara 31 hingga 69 tahun (umur median, 49 tahun). Data miliampere-saat, kilovoltan dan ketebalan payudara tertekan untuk setiap prosedur craniocaudal telah diguna untuk menilai glandulariti setiap payudara. Perbezaan bermakna glandulariti payudara diantara kumpulan etnik diuji menggunakan ujian bukan-parametrik Kruskal-Wallis. Kajian menunjukkan purata glandulariti payudara menggunakan system digital mamografi berbidang penuh ialah 52.94±27.03%. Tiada perbezaan yang bermakna untuk glandulariti payudara diantara kumpulan etnik (p>0.05, ujian Kruskal-Wallis). Glandulariti payudara berkurangan dengan meningkatnya umur sehingga 60 tahun.