ARTICLE
TITLE

Radiation dose comparisons in CT thorax, CT abdomen and CT thorax-abdomen-pelvis (TAP) between 640-and 160-slice computed tomography (CT) scanners

SUMMARY

This study was carried out to compare the effective dose, size specific dose estimation (SSDE) and scan length between genders and between CT scanner with different slice number. A total of 245 set data of radiation dose and scan length for CT scanning procedure involving thorax, abdomen and pelvis regions were obtained retrospectively for comparisons. 111 patients (60 males and 51 females) were scanned using 160-slices CT scanner while 134 patients (71 males and 63 females) were scanned using 640-slices CT scanner. Generally, there were no significant differences in the radiation dose and scan length among genders. However, differences for SSDE in CT thorax and CT thorax-abdomen-pelvis (TAP) protocols exist whereby in CT thorax protocol, 640-slices CT scanner had a significantly higher value of SSDE (9.06±2.67 mGy) than that in 160-slices CT scanner (7.82±1.33 mGy). Similarly to the CT TAP protocol, whereby 640-slices CT scanner had a significantly lower value in SSDE (9.17±1.59 mGy) than that in 160-slices CT scanner (10.76±3.72 mGy).In conclusion, there was no significant difference in the radiation dose and scan length between genders but significant difference was only observed in SSDE due to the presence of body size variation among the study population especially in different CT scanners.DOI : http://dx.doi.org/10.17576/JSKM-2020-1801-05

 Articles related

Akmal Sabarudin,Kanaga Kumari Chelliah,Hamzaini Abdul Hamid    

Intravenous urography (IVU) and unenhanced helical computed tomography (UHCT) urography are the two main procedures performed in the radiological investigation for urolithiasis (urinary stone). However, exposure to ionizing radiation is the mai... see more


Kanaga Kumari Chelliah,Felecia Lumin    

Mammography is the most effective way to detect breast abnormality among women. However, mammography is believed to be able to cause radiation induced carcinogenesis. Therefore dose measurement is important to estimate the risk and to control the quality... see more


Hashim Fathi Yaseen    

Radiation dose or absorbed dose means that the amount of energy absorbed by human tissue, and accurately is the concentration of energy deposited in tissue, when exposure to ionizing radiation, effective dose is the dose that will achieve the desired eff... see more


Rini Indrati,Siti Daryati,Dewi Kartikasari,Sri Mulyati,Marichatul Jannah    

The projections for the sacrum are axial anteroposterior with the beam 15 degrees toward the cephalad, and axial posteroanterior in the direction of the beam 15 degrees caudally. Some practitioners take steps to examine the sacrum with AP projections in ... see more


Yanti Lusiyanti,Iin Kurnia,Viria Agesti Suvifan,Sardini Sardini,Sofiati Purnami,Nastiti Rahajeng    

Medical workers representing the group is the most consistently are exposed to low doses of ionizing radiation, prolonged low-level ionizing radiation can induce chromosomal aberrations (CAs). This study would evaluate the cytogenetic effect using the CA... see more