• 276 Citations
  • 6 h-Index
20082019
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Research Output 2008 2019

  • 276 Citations
  • 6 h-Index
  • 11 Article
  • 3 Conference contribution
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Article
2019

Development of a 4D digital phantom for cone-beam CT (CBCT) imaging on the Varian On-Board Imager (OBI)

Amin, A. T. M., Mokri, S. S., Ahmad, R. & Rahni, A. A. A., 1 Jan 2019, In : International Journal of Integrated Engineering. 11, 3, p. 90-99 10 p.

Research output: Contribution to journalArticle

Open Access
Image sensors
Cones
Imaging techniques
Magnetic resonance
Quantum noise
2017

Bladder filling variation during conformal radiotherapy for rectal cancer

Sithamparam, S., Ahmad, R., Sabarudin, A., Othman, Z. & Ismail, M., 31 May 2017, In : Journal of Physics: Conference Series. 851, 1, 012026.

Research output: Contribution to journalArticle

bladder
radiation therapy
cancer
toxicity
planning

Immobilisation precision in VMAT for oral cancer patients

Norfadilah, M. N., Ahmad, R., Heng, S. P., Lam, K. S., Radzi, A. B. A. & John, L. S. H., 31 May 2017, In : Journal of Physics: Conference Series. 851, 1, 012025.

Research output: Contribution to journalArticle

syringes
immobilization
cancer
radiation therapy
margins
5 Citations (Scopus)
Elasticity Imaging Techniques
Thyroid Nodule
Meta-Analysis
Confidence Intervals
Sensitivity and Specificity
2013
40 Citations (Scopus)

A margin-of-the-day online adaptive intensity-modulated radiotherapy strategy for cervical cancer provides superior treatment accuracy compared to clinically recommended margins: A dosimetric evaluation

Ahmad, R., Bondar, L., Voet, P., Mens, J. W., Quint, S., Dhawtal, G., Heijmen, B. & Hoogeman, M., Oct 2013, In : Acta Oncologica. 52, 7, p. 1430-1436 7 p.

Research output: Contribution to journalArticle

Intensity-Modulated Radiotherapy
Uterine Cervical Neoplasms
Urinary Bladder
Tomography
Cervix Uteri
2012
70 Citations (Scopus)
Intensity-Modulated Radiotherapy
bladder
Uterine Cervical Neoplasms
pretreatment
radiation therapy
19 Citations (Scopus)

Residual setup errors caused by rotation and non-rigid motion in prone-treated cervical cancer patients after online CBCT image-guidance

Ahmad, R., Hoogeman, M. S., Quint, S., Mens, J. W., Osorio, E. M. V. & Heijmen, B. J. M., Jun 2012, In : Radiotherapy and Oncology. 103, 3, p. 322-326 5 p.

Research output: Contribution to journalArticle

Uterine Cervical Neoplasms
Pelvis
Equipment and Supplies
Surgical Instruments
Spine
2011
41 Citations (Scopus)

Increasing treatment accuracy for cervical cancer patients using correlations between bladder-filling change and cervix-uterus displacements: Proof of principle

Ahmad, R., Hoogeman, M. S., Bondar, M., Dhawtal, V., Quint, S., De Pree, I., Mens, J. W. & Heijmen, B. J. M., Mar 2011, In : Radiotherapy and Oncology. 98, 3, p. 340-346 7 p.

Research output: Contribution to journalArticle

Cervix Uteri
Uterine Cervical Neoplasms
Urinary Bladder
Uterus
Therapeutics
45 Citations (Scopus)

Toward an individualized target motion management for IMRT of cervical cancer based on model-predicted cervix-uterus shape and position

Bondar, L., Hoogeman, M., Mens, J. W., Dhawtal, G., De Pree, I., Ahmad, R., Quint, S. & Heijmen, B., May 2011, In : Radiotherapy and Oncology. 99, 2, p. 240-245 6 p.

Research output: Contribution to journalArticle

Cervix Uteri
Uterine Cervical Neoplasms
Urinary Bladder
Prone Position
Therapeutics
2009
1 Citation (Scopus)

TU‐D‐BRC‐06: Towards Online Image Guided Radiotherapy for Cervical Cancer: Accurate Cervix‐Uterus Prediction Based On Measured Bladder Volumes

Bondar, M., Hoogeman, M., Dhawtal, G., Mens, J., Osorio, E. V., de Pree, I., Quint, S., Ahmad, R. & Heijmen, B., 1 Jan 2009, In : Medical Physics. 36, 6, 1 p.

Research output: Contribution to journalArticle

Image-Guided Radiotherapy
Uterine Cervical Neoplasms
Urinary Bladder
Prone Position
Radiotherapy
2008
52 Citations (Scopus)

Inter-fraction bladder filling variations and time trends for cervical cancer patients assessed with a portable 3-dimensional ultrasound bladder scanner

Ahmad, R., Hoogeman, M. S., Quint, S., Mens, J. W., de Pree, I. & Heijmen, B. J. M., Nov 2008, In : Radiotherapy and Oncology. 89, 2, p. 172-179 8 p.

Research output: Contribution to journalArticle

Uterine Cervical Neoplasms
Urinary Bladder
Cone-Beam Computed Tomography
Urinary Bladder Neoplasms
Safety