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All Outputs (149)

Radiation dose differences between thoracic radiotherapy planning CT and thoracic diagnostic CT scans (2015)
Journal Article
Sanderud, A., England, A., Hogg, P., Fosså, K., Svensson, S., & Johansen, S. (2016). Radiation dose differences between thoracic radiotherapy planning CT and thoracic diagnostic CT scans. Radiography, 22(2), 107-111. https://doi.org/10.1016/j.radi.2015.08.003

Purpose: To compare the absorbed dose from computed tomography (CT) in radiotherapy planning (RP CT) against those from diagnostic CT (DG CT) examinations and to explore the possible reasons for any dose differences. Method: Two groups of patients u... Read More about Radiation dose differences between thoracic radiotherapy planning CT and thoracic diagnostic CT scans.

A method for calculating effective lifetime risk of radiation-induced cancer from screening mammography (2015)
Journal Article
Ali, R., England, A., McEntee, M., & Hogg, P. (2015). A method for calculating effective lifetime risk of radiation-induced cancer from screening mammography. Radiography, 21(4), 298-303. https://doi.org/10.1016/j.radi.2015.07.008

Purpose: To propose a method for evaluating the effective lifetime risk of radiation-induced cancer from screening mammography and to present initial data for the UK National Breast Screening Programme. Material and methods: The imaging was und... Read More about A method for calculating effective lifetime risk of radiation-induced cancer from screening mammography.

Breast composition : measurement and clinical use (2015)
Journal Article
Ekpo, E., Hogg, P., Highnam, R., & McEntee, M. (2015). Breast composition : measurement and clinical use. Radiography, 21(4), 324-333. https://doi.org/10.1016/j.radi.2015.06.006

Breast density is a measure of the extent of radiodense fibroglandular tissue in the breast. The risk of developing breast cancer and the risk of missing cancer at screening rise with higher breast density. In this paper, the historical background to... Read More about Breast composition : measurement and clinical use.

What is the minimum amount of simulated breast movement required for visual detection of blurring : An exploratory investigation? (2015)
Journal Article
Ma, W., Aspin, R., Hogg, P., Kelly, J., & Millington, S. (2015). What is the minimum amount of simulated breast movement required for visual detection of blurring : An exploratory investigation?. British Journal of Radiology, 88(1052), https://doi.org/10.1259/bjr.20150126

Background: Image blurring in mammography can cause significant image degradation and interpretational problems. A potential source is due to paddle movement during image formation. Paddle movement has been shown to be as much as 1.5mm. No study has... Read More about What is the minimum amount of simulated breast movement required for visual detection of blurring : An exploratory investigation?.

Mammography screening in Nigeria – a critical comparison to other countries (2015)
Journal Article
Lawal, O., Murphy, F., Hogg, P., & Nightingale, J. (2015). Mammography screening in Nigeria – a critical comparison to other countries. Radiography, 21(4), 348-351. https://doi.org/10.1016/j.radi.2015.03.015

Breast cancer is a leading cause of death among women, and according to the World Health Organisation (WHO) there will be a significant increase in the incidence of breast cancer in developing countries such as Nigeria by 2030. However, mammography s... Read More about Mammography screening in Nigeria – a critical comparison to other countries.

Does elevating image receptor increase breast receptor footprint and improve pressure balance? (2015)
Journal Article
Smith, H., Szczepura, K., Mercer, C., Maxwell, A., & Hogg, P. (2015). Does elevating image receptor increase breast receptor footprint and improve pressure balance?. Radiography, 21(4), 359-363. https://doi.org/10.1016/j.radi.2015.02.001

There is no consensus in the literature regarding the image receptor (IR) position for the cradio-caudal projection in mammography. Some literature indicates the IR should be positioned to the infra mammary fold (IMF); other literature suggests the... Read More about Does elevating image receptor increase breast receptor footprint and improve pressure balance?.

Lesion detection performance : comparative analysis of low-dose CT data of the chest on two hybrid imaging systems (2015)
Journal Article
Jessop, M., Thompson, J., Coward, J., Sanderud, A., Jorge, J., De Groot, M., …Hogg, P. (2015). Lesion detection performance : comparative analysis of low-dose CT data of the chest on two hybrid imaging systems. Journal of Nuclear Medicine Technology, 43(1), 53-60. https://doi.org/10.2967/jnmt.114.147447

PURPOSE: Incidental findings, discovered in low-dose CT images obtained during hybrid imaging, are an increasing phenomenon with advancing CT technology. Understanding their diagnostic value along with technical limitations is therefore important... Read More about Lesion detection performance : comparative analysis of low-dose CT data of the chest on two hybrid imaging systems.

A phantom-based JAFROC observer study of two CT reconstruction methods : the search for optimisation of lesion detection and effective dose (2015)
Journal Article
Mello-Thoms, C., Kupinski, M., Thompson, J., Chakraborty, D., Szczepura, K., Vamvakas, I., …Hogg, P. (2015). A phantom-based JAFROC observer study of two CT reconstruction methods : the search for optimisation of lesion detection and effective dose. Proceedings of SPIE, 9416, 94160B. https://doi.org/10.1117/12.2081632

Purpose: To investigate the dose saving potential of iterative reconstruction (IR) in a computed tomography (CT) examination of the thorax. Materials and Methods: An anthropomorphic chest phantom containing various configurations of simulated lesi... Read More about A phantom-based JAFROC observer study of two CT reconstruction methods : the search for optimisation of lesion detection and effective dose.

Breast compression - an exploration of problem solving and decision making in mammography (2014)
Journal Article
Nightingale, J., Murphy, F., Robinson, L., Newton-Hughes, A., & Hogg, P. (2015). Breast compression - an exploration of problem solving and decision making in mammography. Radiography, 21(4), 364-369. https://doi.org/10.1016/j.radi.2014.11.004

Objective: Breast compression decreases radiation dose and reduces potential for motion and geometric unsharpness, yet there is variability in applied compression force within and between some centres. This article explores the problem solving proces... Read More about Breast compression - an exploration of problem solving and decision making in mammography.

Extra patient movement during mammographic imaging : an experimental study (2014)
Journal Article
an experimental study. British Journal of Radiology, 87(1044), https://doi.org/10.1259/bjr.20140241

Objectives: To determine if movement external to the patient occurring during mammography may be a source of image blur. Methods: Four mammography machines with seven flexible and nine fixed paddles were evaluated. In the first stage, movement at the... Read More about Extra patient movement during mammographic imaging : an experimental study.

Multi-centre analysis of incidental findings on low-resolution CT attenuation correction images (2014)
Journal Article
Coward, J., Lawson, R., Kane, T., Elias, M., Howes, A., Birchall, J., & Hogg, P. (2014). Multi-centre analysis of incidental findings on low-resolution CT attenuation correction images. British Journal of Radiology, 87(1042), https://doi.org/10.1259/bjr.20130701

Objective: To review new incidental findings detected on low-resolution CT attenuation correction (CTAC) images acquired during single-photon emission CT (SPECT-CT) myocardial perfusion imaging (MPI) and to determine whether the CTAC images had d... Read More about Multi-centre analysis of incidental findings on low-resolution CT attenuation correction images.

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.

A 6 year study of mammographic compression force : practitioner variability within and between screening sites (2014)
Journal Article
Mercer, C., Szczepura, K., Kelly, J., Millington, S., Denton, D., Borgen, R., …Hogg, P. (2015). A 6 year study of mammographic compression force : practitioner variability within and between screening sites. Radiography, 21(1), 68-73. https://doi.org/10.1016/j.radi.2014.07.004

Background The application of compression force in mammography is more heavily influenced by the practitioner rather than the client. This can affect client experience, radiation dose and image quality. This research investigates practitioner comp... Read More about A 6 year study of mammographic compression force : practitioner variability within and between screening sites.

The influence of experience and training in a group of novice observers : A jackknife alternative free-response receiver operating characteristic analysis (2014)
Journal Article
observers : A jackknife alternative free-response receiver operating characteristic analysis. Radiography, 20(4), 300-305. https://doi.org/10.1016/j.radi.2014.06.016

Purpose: The study evaluates the pre- and post-training lesion localisation ability of a group of novice observers. Parallels are drawn with the performance of inexperienced radiographers taking part in preliminary clinical evaluation (PCE) and ‘re... Read More about The influence of experience and training in a group of novice observers : A jackknife alternative free-response receiver operating characteristic analysis.

An evaluation of the student and tutor experience of a residential summer school event (OPTIMAX) (2014)
Journal Article
Higgins, R., Robinson, L., & Hogg, P. (2014). An evaluation of the student and tutor experience of a residential summer school event (OPTIMAX). Radiography, 20(4), 363-368. https://doi.org/10.1016/j.radi.2014.06.015

Aim: To explore the experiences of students and tutors who participated in a residential multi-cultural and multi-professional 3 week summer school event (OPTIMAX). Method: A grounded theory approach was adopted. Two semi-structured focus group in... Read More about An evaluation of the student and tutor experience of a residential summer school event (OPTIMAX).

An observational study of cross-cultural communication in short-term, diverse professional learning groups (2014)
Journal Article
Robinson, L., Hogg, P., & Higgins, R. (2014). An observational study of cross-cultural communication in short-term, diverse professional learning groups. Radiography, 20(4), 356-362. https://doi.org/10.1016/j.radi.2014.06.007

Abstract This paper reports the evaluation of a European funded 3-week summer school which took place in 2013 involving 60 staff and students from five universities. The evaluation looked at one group in detail using a qualitative approach to consi... Read More about An observational study of cross-cultural communication in short-term, diverse professional learning groups.