IMAGING IN CANCER

Introduction: Imaging modalities are mainly used to achieve the goals screening for tumor existence, detection of all tumor cells in the body and metastasis, and monitoring response of a treatment. Recently the use of angiogenic modalities has also played a significant role. , there are six imaging modalities that physicians usually use. These six modalities are: ultrasound, x-ray (plain film and computed tomography), magnetic resonance imaging, positron emission tomography, single-photon emission computed tomography, and optical imaging. Aim of the work: In this study we aimed to understand the different types imaging modalities that are used in managing cancer. Methodology: we conducted this review using a comprehensive search of MEDLINE, PubMed, and EMBASE from January 1987 to March 2017. The following search terms were used: cancer imaging, ultrasound, cancer screening, cancer diagnosis, PET scan, SPECT Conclusion: Although new technologies have massively helped in cancer management, detection of small cancers in the body continues to be challenging. However, it is still essential to detect smaller and earlier malignancies as this is a main prognostic factor in determining the survival of patients. Newer imaging modalities like optic imaging are very likely to impact clinical practice. Keywords: cancer imaging, ultrasound, cancer screening, cancer diagnosis, PET scan, SPEC