Characterisation of malignant and benign musculoskeletal soft tissue lesions using the diffusion weighted magnetic resonance imaging

Introduction : Conventional magnetic resonance imaging (MRI) shows some overlapping features of malignant and benign musculoskeletal soft tissue tumour. Objectives : The purpose of this study is to characterise malignant and benign or tumour-like musculoskeletal soft tissue lesions using apparent...

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Main Author:	Latif, Nurulhuda Abdul
Format:	Thesis
Language:	English
Published:	2018
Subjects:	R Medicine
Online Access:	http://eprints.usm.my/47817/1/Dr.%20Nurulhuda%20Abdul%20Latif-24%20pages.pdf
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spelling	my-usm-ep.478172020-10-28T06:26:29Z Characterisation of malignant and benign musculoskeletal soft tissue lesions using the diffusion weighted magnetic resonance imaging 2018 Latif, Nurulhuda Abdul R Medicine Introduction : Conventional magnetic resonance imaging (MRI) shows some overlapping features of malignant and benign musculoskeletal soft tissue tumour. Objectives : The purpose of this study is to characterise malignant and benign or tumour-like musculoskeletal soft tissue lesions using apparent diffusion coefficients (ADC) and to determine the accuracy of the ADC with histopathological examination (HPE) result. Methodology : Cross sectional study on patients referred for conventional magnetic resonance imaging (MRI) for suspected musculoskeletal soft tissue lesions and fullfilled the inclusion and exclusion criteria. Diffusion weighted imaging (DWI) and ADC maps were evaluated to obtain the mean ADC value. The relationship between the ADC value and type of tumours were analysed with statistical tests. The p value of less than 0.05 was taken as statistically significant. Results : From all the forty (n=40) subjects who came for routine conventional MRI imaging for musculoskeletal lesions, only twenty-three (n=23) subjects full-filled the inclusion and exclusion criteria and histologically proven musculoskeletal soft tissue lesions were included in this study. Thirteen patients (n=13) had histologically proven malignant lesions and ten patients (n=10) had histologically proven benign or tumour-like lesions. Patients with malignant lesions demonstrated lower mean ADC value in comparison with the patient with benign or tumour-like lesions. Based on Mann-Whitney test, the mean ADC was significantly different (p<0.001). The median ADC for malignant lesions was 1.04 x 10- 3 mm2/sec (SD 2.38) and benign lesions was 1.61 x 10-3 mm2/sec (SD 0.51). The sensitivity and specificity of mean ADC in predicting type of musculoskeletal soft tissue lesions comparing to histopathology examination report was 90.1% and 100% respectively with cut off point of 1.3 x 10-3 mm2/sec. Conclusion: There was statistically significant difference of mean ADC value of malignant and benign or tumour-like lesions. DWI was also highly sensitive and specific as compared to tissue analysis to determine type of lesions. Thus, DWI has potential in differentiating malignant and benign soft tissue lesions. 2018 Thesis http://eprints.usm.my/47817/ http://eprints.usm.my/47817/1/Dr.%20Nurulhuda%20Abdul%20Latif-24%20pages.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Perubatan
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	R Medicine
spellingShingle	R Medicine Latif, Nurulhuda Abdul Characterisation of malignant and benign musculoskeletal soft tissue lesions using the diffusion weighted magnetic resonance imaging
description	Introduction : Conventional magnetic resonance imaging (MRI) shows some overlapping features of malignant and benign musculoskeletal soft tissue tumour. Objectives : The purpose of this study is to characterise malignant and benign or tumour-like musculoskeletal soft tissue lesions using apparent diffusion coefficients (ADC) and to determine the accuracy of the ADC with histopathological examination (HPE) result. Methodology : Cross sectional study on patients referred for conventional magnetic resonance imaging (MRI) for suspected musculoskeletal soft tissue lesions and fullfilled the inclusion and exclusion criteria. Diffusion weighted imaging (DWI) and ADC maps were evaluated to obtain the mean ADC value. The relationship between the ADC value and type of tumours were analysed with statistical tests. The p value of less than 0.05 was taken as statistically significant. Results : From all the forty (n=40) subjects who came for routine conventional MRI imaging for musculoskeletal lesions, only twenty-three (n=23) subjects full-filled the inclusion and exclusion criteria and histologically proven musculoskeletal soft tissue lesions were included in this study. Thirteen patients (n=13) had histologically proven malignant lesions and ten patients (n=10) had histologically proven benign or tumour-like lesions. Patients with malignant lesions demonstrated lower mean ADC value in comparison with the patient with benign or tumour-like lesions. Based on Mann-Whitney test, the mean ADC was significantly different (p<0.001). The median ADC for malignant lesions was 1.04 x 10- 3 mm2/sec (SD 2.38) and benign lesions was 1.61 x 10-3 mm2/sec (SD 0.51). The sensitivity and specificity of mean ADC in predicting type of musculoskeletal soft tissue lesions comparing to histopathology examination report was 90.1% and 100% respectively with cut off point of 1.3 x 10-3 mm2/sec. Conclusion: There was statistically significant difference of mean ADC value of malignant and benign or tumour-like lesions. DWI was also highly sensitive and specific as compared to tissue analysis to determine type of lesions. Thus, DWI has potential in differentiating malignant and benign soft tissue lesions.
format	Thesis
qualification_level	Master's degree
author	Latif, Nurulhuda Abdul
author_facet	Latif, Nurulhuda Abdul
author_sort	Latif, Nurulhuda Abdul
title	Characterisation of malignant and benign musculoskeletal soft tissue lesions using the diffusion weighted magnetic resonance imaging
title_short	Characterisation of malignant and benign musculoskeletal soft tissue lesions using the diffusion weighted magnetic resonance imaging
title_full	Characterisation of malignant and benign musculoskeletal soft tissue lesions using the diffusion weighted magnetic resonance imaging
title_fullStr	Characterisation of malignant and benign musculoskeletal soft tissue lesions using the diffusion weighted magnetic resonance imaging
title_full_unstemmed	Characterisation of malignant and benign musculoskeletal soft tissue lesions using the diffusion weighted magnetic resonance imaging
title_sort	characterisation of malignant and benign musculoskeletal soft tissue lesions using the diffusion weighted magnetic resonance imaging
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Perubatan
publishDate	2018
url	http://eprints.usm.my/47817/1/Dr.%20Nurulhuda%20Abdul%20Latif-24%20pages.pdf
_version_	1747821834608312320

Characterisation of malignant and benign musculoskeletal soft tissue lesions using the diffusion weighted magnetic resonance imaging

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