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All Outputs (177)

A self-directed learning intervention for radiographers rating mammographic breast density (2017)
Journal Article
Ekpo, E., Wasike, E., Hogg, P., & McEntee, M. (2017). A self-directed learning intervention for radiographers rating mammographic breast density. Radiography, 23(4), 337-342. https://doi.org/10.1016/j.radi.2017.05.014

Purpose: Subjective methods of mammographic breast density (MBD) assessment are prone to inter-reader variability. This work aims to assess the impact of a short self-directed experiential learning intervention on radiographers’ reproducibility of MB... Read More about A self-directed learning intervention for radiographers rating mammographic breast density.

Closed-loop control of compression paddle motion to reduce blurring in mammograms (2017)
Journal Article
Ma, W., Hogg, P., & Howard, D. (2017). Closed-loop control of compression paddle motion to reduce blurring in mammograms. Medical Physics, 44(8), 4139-4147. https://doi.org/10.1002/mp.12333

Background: Since the introduction of full field digital mammography (FFDM) a large number of UK breast cancer screening centers have reported blurred images, which can be caused by movement at the compression paddle during image acquisition.
Purpos... Read More about Closed-loop control of compression paddle motion to reduce blurring in mammograms.

Antero-posterior (AP) pelvis x-ray imaging on a trolley : impact of trolley design, mattress design and radiographer practice on image quality and radiation dose (2017)
Journal Article
Allsup, J., England, A., & Hogg, P. (2017). Antero-posterior (AP) pelvis x-ray imaging on a trolley : impact of trolley design, mattress design and radiographer practice on image quality and radiation dose. Radiography, 23(3), 242-248. https://doi.org/10.1016/j.radi.2017.04.002

Introduction: Physical and technical differences exist between imaging on an x-ray tabletop and imaging on a trolley. This study evaluates how trolley imaging impacts image quality and radiation dose for an antero-posterior (AP) pelvis projection whi... Read More about Antero-posterior (AP) pelvis x-ray imaging on a trolley : impact of trolley design, mattress design and radiographer practice on image quality and radiation dose.

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?.

A JAFROC study of nodule detection performance in CT images of a thorax acquired during PET/CT (2017)
Journal Article
Thompson, J., Wareing, A., Szczepura, K., Vinjamuri, S., & Hogg, P. (2017). A JAFROC study of nodule detection performance in CT images of a thorax acquired during PET/CT. Radiography, 23(3), 191-196. https://doi.org/10.1016/j.radi.2017.03.001

Purpose
Two types of CT images (modalities) are acquired in PET/CT: for attenuation correction (AC) and diagnosis. The purpose of the study was to compare nodule detection and localization performance between these two modalities.


Methods
CT... Read More about A JAFROC study of nodule detection performance in CT images of a thorax acquired during PET/CT.

Blurred digital mammography images : an analysis of technical recall and observer detection performance (2017)
Journal Article
Ma, W., Kelly, J., Millington, S., Hilton, B., Borgan, R., Aspin, R., …Hogg, P. (2017). Blurred digital mammography images : an analysis of technical recall and observer detection performance. British Journal of Radiology, 90(1071), 20160271. https://doi.org/10.1259/bjr.20160271

Background: Blurred images in Full Field Digital Mammography (FFDM) are a problem in the UK Breast Screening Programme. Technical recalls may be due to blurring not being seen on lower resolution monitors used for review.
Objectives: This study ass... Read More about Blurred digital mammography images : an analysis of technical recall and observer detection performance.

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.

Compression forces used in the Norwegian Breast Cancer Screening Program (2017)
Journal Article
Waade, G., Moshina, N., Sæbuødegård, S., Hogg, P., & Hofvind, S. (2017). Compression forces used in the Norwegian Breast Cancer Screening Program. British Journal of Radiology, 90(1071), https://doi.org/10.1259/bjr.20160770

Objectives: Compression is used in mammography to reduce breast thickness, which is claimed to improve image quality and reduce radiation dose. In the Norwegian Breast Cancer Screening Program (NBCSP), the recommended range of compression force for f... Read More about Compression forces used in the Norwegian Breast Cancer Screening Program.

Health behavioural theories and their application to women’s participation in mammography screening : a narrative review (2017)
Journal Article
narrative review. Journal of Medical Imaging and Radiation Sciences, 48(2), 122-127. https://doi.org/10.1016/j.jmir.2016.12.002

The most effective method of detecting breast cancer amongst asymptomatic women is by mammography screening. Although, most countries have this preventive measure in place for women within their society; most of these programmes still struggle with w... Read More about Health behavioural theories and their application to women’s participation in mammography screening : a narrative review.

Constructive alignment of a research-informed teaching activity within an undergraduate diagnostic radiography curriculum : a reflection (2016)
Journal Article
Higgins, R., Hogg, P., & Robinson, L. (2017). Constructive alignment of a research-informed teaching activity within an undergraduate diagnostic radiography curriculum : a reflection. Radiography, 23(S1), S30-S36. https://doi.org/10.1016/j.radi.2016.11.004

Aim: To evaluate the learning experience of a level 5 (year 2) student cohort within a research-informed teaching (RiT) activity and to map findings against learning outcomes and level descriptors using constructive alignment.

Method: An online q... Read More about Constructive alignment of a research-informed teaching activity within an undergraduate diagnostic radiography curriculum : a reflection.

Development of a phantom to test fully automated breast density software – a work in progress (2016)
Journal Article
Wåde, G., Hogg, P., Thompson, J., & Hofvind, S. (2017). Development of a phantom to test fully automated breast density software – a work in progress. Radiography, 23(1), e14-e19. https://doi.org/10.1016/j.radi.2016.09.003

Objectives: Mammographic density (MD) is an independent risk factor for breast cancer and may have a future role for stratified screening. Automated software can estimate MD but the relationship between breast thickness reduction and MD is not fully... Read More about Development of a phantom to test fully automated breast density software – a work in progress.

The role of 18F-sodium fluoride PET/CT bone scans in the diagnosis of metastatic bone disease from breast and prostate cancer (2016)
Journal Article
Kulshrestha, R., England, A., Nightingale, J., Vinjamuri, R., & Hogg, P. (2016). The role of 18F-sodium fluoride PET/CT bone scans in the diagnosis of metastatic bone disease from breast and prostate cancer. Journal of Nuclear Medicine Technology, 44(4), 217-222. https://doi.org/10.2967/jnmt.116.176859

This article shall describe the role of 18F-Sodium Fluoride (18F-NaF) PET/CT bone scanning in the staging of breast and prostate cancer. 18F-NaF PET was initially utilised as a bone scanning agent in the 1960s and early 1970s, however its usage was r... Read More about The role of 18F-sodium fluoride PET/CT bone scans in the diagnosis of metastatic bone disease from breast and prostate cancer.

A method to determine the impact of reduced visual function on nodule detection performance (2016)
Journal Article
Thompson, J., Lança, C., Lança, L., & Hogg, P. (2017). A method to determine the impact of reduced visual function on nodule detection performance. Radiography, 23(1), 19-24. https://doi.org/10.1016/j.radi.2016.07.002

Purpose: In this study we aim to validate a method to assess the impact of reduced visual function and observer performance concurrently with a nodule detection task.

Materials and methods: Three consultant radiologists completed a nodule detectio... Read More about A method to determine the impact of reduced visual function on nodule detection performance.

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.

The impact of greyscale inversion for nodule detection in an anthropomorphic chest phantom: a free-response observer study (2016)
Journal Article
Thompson, J., Thomas, N., Manning, D., & Hogg, P. (2016). The impact of greyscale inversion for nodule detection in an anthropomorphic chest phantom: a free-response observer study. British Journal of Radiology, 89(1064), 20160249. https://doi.org/10.1259/bjr.20160249

Objective: The aim of this work was to assess the impact of greyscale inversion on nodule detection on poster- oanterior chest X-ray images. Previous work has attemp- ted this, with no consensus opinion formed. We assessed the value of “fast-flicking... Read More about The impact of greyscale inversion for nodule detection in an anthropomorphic chest phantom: a free-response observer study.

Gonad dose in AP pelvis radiography : impact of anode heel orientation (2016)
Journal Article
Mraity, H., England, A., & Hogg, P. (2017). Gonad dose in AP pelvis radiography : impact of anode heel orientation. Radiography, 23(1), 14-18. https://doi.org/10.1016/j.radi.2016.06.003

Purpose: For antero posterior (AP) pelvis radiographic examination, determine the impact of anode heel orientation on female / male gonad dose.
Methods: High sensitivity thermo-luminescent dosimeters (TLDs) were used with an ATOM dosimetry phantom;... Read More about Gonad dose in AP pelvis radiography : impact of anode heel orientation.

Impact of errors in recorded compressed breast thickness measurements on volumetric density classification using volpara v1.5.0 software (2016)
Journal Article
Waade, G., Highnam, R., Hauge, I., McEntee, M., Hofvind, S., Denton, E., …Hogg, P. (2016). Impact of errors in recorded compressed breast thickness measurements on volumetric density classification using volpara v1.5.0 software. Medical Physics, 43(6 Pt.1), 2870-2876. https://doi.org/10.1118/1.4948503

Purpose: Mammographic density has been demonstrated to predict breast cancer risk. It has been proposed that it could be used for stratifying screening pathways and recommending additional imaging. Volumetric density tools use the recorded compressed... Read More about Impact of errors in recorded compressed breast thickness measurements on volumetric density classification using volpara v1.5.0 software.

Operator eye doses during computed tomography fluoroscopic lung biopsy (2016)
Journal Article
Ekpo, E., Bakhshi, S., Ryan, E., Hogg, P., & McEntee, M. (2016). Operator eye doses during computed tomography fluoroscopic lung biopsy. Journal of Radiological Protection, 36(2), 290-298. https://doi.org/10.1088/0952-4746/36/2/290

The aim of this work was to examine the peak entrance surface air kerma
(peak ESAK) to the eyes during CT fluoroscopy lung biopsy, and the impact
of lead glasses, exposure parameters, head rotation, and height on peak ESAK
to the eyes.
Two phanto... Read More about Operator eye doses during computed tomography fluoroscopic lung biopsy.