Evaluation of X-ray table mattresses for radiation attenuation and impact on image quality (2020)
Journal Article
Alresheedi, N., Walton, L., Hogg, P., Webb, J., & Tootell, A. (2021). Evaluation of X-ray table mattresses for radiation attenuation and impact on image quality. Radiography, 27(1), 215-220. https://doi.org/10.1016/j.radi.2020.10.014

Introduction Mattresses in the radiology department tend to be an overlooked aspect of imaging equipment. This paper evaluates the radiation attenuation characteristics of mattresses and the effect they have on image quality. Method Thirteen... Read More about Evaluation of X-ray table mattresses for radiation attenuation and impact on image quality.

A phantom-based method to assess X-ray table mattress interface pressures (2020)
Journal Article
Alresheedi, N., Walton, A., Tootell, A., Webb, J., & Hogg, P. (2020). A phantom-based method to assess X-ray table mattress interface pressures. Journal of Medical Imaging and Radiation Sciences, 51(3), 417-424. https://doi.org/10.1016/j.jmir.2020.04.007

Background Pressure redistribution performance of X-ray table mattresses can influence the development of pressure ulcers in at risk populations. Interface pressure analysis, with human participants, is a common method to assess mattresses. This... Read More about A phantom-based method to assess X-ray table mattress interface pressures.

Radiation protection value to the operator from augmented reality smart glasses in interventional fluoroscopy procedures using phantoms (2019)
Journal Article
Dorey, S., Gray, L., Tootell, A., Higgins, R., Al-Islam, S., Baxter, H., …Hogg, P. (2019). Radiation protection value to the operator from augmented reality smart glasses in interventional fluoroscopy procedures using phantoms. Radiography, 25(4), 301-307. https://doi.org/10.1016/j.radi.2019.02.008

Introduction: Smart glasses can be adapted to display radiographic images to allow clinician’s gaze not to be directionally fixed or predetermined by computer monitor location. This study presents an analysis of eye lens dose during interventional fl... Read More about Radiation protection value to the operator from augmented reality smart glasses in interventional fluoroscopy procedures using phantoms.

Scoliosis imaging : an analysis of radiation risk in the CT scan projection radiograph and a comparison with projection radiography and EOS (2019)
Journal Article
Alrehily, F., Hogg, P., Twiste, M., Johansen, S., & Tootell, A. (2019). Scoliosis imaging : an analysis of radiation risk in the CT scan projection radiograph and a comparison with projection radiography and EOS. Radiography, 25(3), https://doi.org/10.1016/j.radi.2019.02.005

Introduction: Scoliosis is defined as a deformity of the spine with lateral curvature in the coronal plane. It requires regular X-ray imaging to monitor the progress of the disorder, therefore scoliotic patients are frequently exposed to radiation. I... Read More about Scoliosis imaging : an analysis of radiation risk in the CT scan projection radiograph and a comparison with projection radiography and EOS.

Effective lifetime radiation risk for a number of national mammography screening programmes (2018)
Journal Article
Ali, R., England, A., McEntee, M., Tootell, A., Mercer, C., & Hogg, P. (2018). Effective lifetime radiation risk for a number of national mammography screening programmes. Radiography, 24(3), 240-246. https://doi.org/10.1016/j.radi.2018.02.001

Background and purpose: The performance of mammography screening programmes is focussed mainly on breast cancer detection rates. However, when the benefits and risks of mammography are considered, the risk of radiation-induced cancer is calculated fo... Read More about Effective lifetime radiation risk for a number of national mammography screening programmes.

Does collimation affect patient dose in antero-posterior thoraco-lumbar spine? (2017)
Journal Article
Robinson, J., Tootell, A., Ali, R., & Hogg, P. (2017). Does collimation affect patient dose in antero-posterior thoraco-lumbar spine?. Radiography, 23(3), 211-215. https://doi.org/10.1016/j.radi.2017.03.012

BACKGROUND: The purpose of this study is to determine the effect of collimation on the lifetime attributable risk (LAR) of cancer incidence in all body organs (effective risk) in patients undergoing antero-posterior (AP) examinations of the spine. T... Read More about Does collimation affect patient dose in antero-posterior thoraco-lumbar spine?.

Analysis of effective and organ dose estimation in CT when using mA modulation : a single scanner pilot study (2017)
Journal Article
Tootell, A., Szczepura, K., & Hogg, P. (2017). Analysis of effective and organ dose estimation in CT when using mA modulation : a single scanner pilot study. Radiography, 23(2), 159-166. https://doi.org/10.1016/j.radi.2017.02.006

Effective dose (ED) estimation in CT examinations can be obtained by combining dose length product (DLP) with published ED per DLP coefficients or performed using software. These methods do not account for tube current (mA) modulation which is influe... Read More about Analysis of effective and organ dose estimation in CT when using mA modulation : a single scanner pilot study.

Effective dose and effective risk from post-SPECT imaging of the lumbar spine (2016)
Journal Article
Tootell, A., McEntee, M., Szczepura, K., & Hogg, P. (2016). Effective dose and effective risk from post-SPECT imaging of the lumbar spine. Journal of Medical Imaging and Radiation Sciences, 47(3), 267-275. https://doi.org/10.1016/j.jmir.2016.04.012

Purpose Planar bone scans play an important role in the staging and monitoring of malignancy and metastases. Metastases in the lumbar spine are associated with significant morbidity, therefore accurate diagnosis is essential. Supplementary imaging... Read More about Effective dose and effective risk from post-SPECT imaging of the lumbar spine.

Effect of reconstruction methods and x-ray tube current-time product on nodule detection in an anthropomorphic thorax phantom : a crossed-modality JAFROC observer study (2016)
Journal Article
Thompson, J., Chakraborty, D., Szczepura, K., Tootell, A., Vamvakas, I., Manning, D., & Hogg, P. (2016). Effect of reconstruction methods and x-ray tube current-time product on nodule detection in an anthropomorphic thorax phantom : a crossed-modality JAFROC observer study. Medical Physics, 43(3), 1265-1274. https://doi.org/10.1118/1.4941017

Purpose: To evaluate nodule detection in an anthropomorphic chest phantom in computed tomography (CT) images reconstructed with adaptive iterative dose reduction 3D (AIDR3D) and filtered back projection (FBP) over a range of tube current-time product... Read More about Effect of reconstruction methods and x-ray tube current-time product on nodule detection in an anthropomorphic thorax phantom : a crossed-modality JAFROC observer study.

Comparison of effective dose and lifetime risk of cancer Incidence of CT attenuation correction acquisitions and radiopharmaceutical administration for myocardial perfusion imaging (2014)
Journal Article
Tootell, A., Szczepura, K., & Hogg, P. (2014). Comparison of effective dose and lifetime risk of cancer Incidence of CT attenuation correction acquisitions and radiopharmaceutical administration for myocardial perfusion imaging. British Journal of Radiology, 87(1041), 20140110. https://doi.org/10.1259/bjr.20140110

Objective: To measure the organ dose and calculate effective dose from CT attenuation correction (CTAC) acquisitions from four commonly used gamma camera single photon emission CT/CT systems. Methods: CTAC dosimetry data was collected using therm... Read More about Comparison of effective dose and lifetime risk of cancer Incidence of CT attenuation correction acquisitions and radiopharmaceutical administration for myocardial perfusion imaging.

An overview of measuring and modelling dose and risk from ionising radiation for medical exposures (2014)
Journal Article
risk from ionising radiation for medical exposures. Radiography, 20(4), 323-332. https://doi.org/10.1016/j.radi.2014.05.002

PURPOSE: This paper gives an overview of the methods that are used to calculate dose and risk from exposure to ionizing radiation as a support to other papers in this special issue. BACKGROUND: The optimization of radiation dose is a legal requir... Read More about An overview of measuring and modelling dose and risk from ionising radiation for medical exposures.

Anthropomorphic chest phantom imaging the potential for dose creep in computed radiography (2013)
Journal Article
creep in computed radiography. Radiography, 19(3), 207-211. https://doi.org/10.1016/j.radi.2013.04.002

For film-based radiography the operator had to be exact in the selection of acquisition parameters or the image could easily become under- or over-exposed. By contrast, digital technology allows for a much greater tolerance of acquisition factor se... Read More about Anthropomorphic chest phantom imaging the potential for dose creep in computed radiography.

Optimising the number of thermoluminescent dosimeters required for the measurement of effective dose for computed tomography attenuation correction data in SPECT/CT myocardial perfusion imaging (2013)
Journal Article
Tootell, A., Szczepura, K., & Hogg, P. (2013). Optimising the number of thermoluminescent dosimeters required for the measurement of effective dose for computed tomography attenuation correction data in SPECT/CT myocardial perfusion imaging. Radiography, 19(1), 42-47. https://doi.org/10.1016/j.radi.2012.11.001

Background The use of thermoluminescent dosimeters (TLDs) is regarded as time consuming and laborious. As part of our dosimetry research it was necessary to optimise the use of our resources, both physical and time. Experimental work was carried... Read More about Optimising the number of thermoluminescent dosimeters required for the measurement of effective dose for computed tomography attenuation correction data in SPECT/CT myocardial perfusion imaging.

Radiation dose assessment : measurement, estimation and interpretation
Thesis
Tootell, A. (in press). Radiation dose assessment : measurement, estimation and interpretation. (Thesis). University of Salford

New technologies or methods of image acquisition are driven by the need for increased anatomical information to improve diagnostic accuracy or surgical planning. These new technologies are often accompanied with additional radiation dose yet this can... Read More about Radiation dose assessment : measurement, estimation and interpretation.