Journal: Journal of Applied Clinical Medical Physics

Article Title: Clinical implementation of Dosimetry Check™ for TomoTherapy ® delivery quality assurance

doi: 10.1002/acm2.12480

Figure Lengend Snippet: A treatment plan for TomoTherapy ® ‐based IMRT delivery verification in (a) axial, (b) coronal and (c) sagittal planes.

Article Snippet: For this test, we used a TomoTherapy ® ‐based IMRT delivery verification plan, which was created on a cylindrical Solid WaterTM phantom (i.e., the cheese phantom) by the TomoTherapy ® factory and used in acceptance test procedure (ATP) during the TomoTherapy ® treatment machine installation.

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Clinical implementation of Dosimetry Check™ for TomoTherapy ® delivery quality assurance

doi: 10.1002/acm2.12480

Figure Lengend Snippet: Comparison of Dosimetry Check™‐calculated, TomoTherapy ® TPS‐calculated and Exradin A1SL ionization chamber‐measured doses for the IMRT verification plan shown in Fig. 1

Article Snippet: For this test, we used a TomoTherapy ® ‐based IMRT delivery verification plan, which was created on a cylindrical Solid WaterTM phantom (i.e., the cheese phantom) by the TomoTherapy ® factory and used in acceptance test procedure (ATP) during the TomoTherapy ® treatment machine installation.

Techniques: Comparison

Journal: Radiation Oncology (London, England)

Article Title: Feasibility of hybrid TomoHelical- and TomoDirect-based volumetric gradient matching technique for total body irradiation

doi: 10.1186/s13014-019-1435-5

Figure Lengend Snippet: Volumetric gradient matching technique plan example for TH&TD-5GVs and TH&TD-7GVs. a Definition of upper and lower-PTV in head-first and feet-first position and gradient volumes (GVs). Dose distribution from each Tomotherapy plan: b TomoHelical IMRT plan in Head-first position, c TomoDirect IMRT plan in feet-first position, and d sagittal view of summed dose distribution from upper and lower-PTV plans. White dashed line (along the line A-B) indicates location for drawing the dose profile. The phantom center (PTV center) was aligned to coincide with the gantry isocenter (point F on ( d )). The positions of three dose measurement points are the E, F, and G

Article Snippet: Dose distribution from each Tomotherapy plan: b TomoHelical IMRT plan in Head-first position, c TomoDirect IMRT plan in feet-first position, and d sagittal view of summed dose distribution from upper and lower-PTV plans.

Techniques:

Journal: Medical Physics

Article Title: Toward a planning scheme for emission guided radiation therapy (EGRT): FDG based tumor tracking in a metastatic breast cancer patient

doi: 10.1118/1.4812427

Figure Lengend Snippet: Calculation of the planning map from three daughter modulation maps that are built in the same sinogram space and which contain the LOR response probability values to account for the corresponding types of modulation. To obtain the modified IMRT plan map, the stack of fluence maps resulting from inverse planning optimization are interpolated and reshaped into sinogram space, and subsequently modified to further suppress dose to nearby OARs. The attenuation correction map is converted from the forward projected CT image based on Eq. 4. Similarly, the PET activity normalization map is calculated from the projection of the diagnostic/pretreatment PET scan, excluding the PTV region, based on Eq. 3. Note that for all modulation maps, only sinogram bins whose corresponding directions intersect the PTV are calculated.

Article Snippet: The IMRT plan is optimized for a planning target volume (PTV) that encompasses the tumor motion using the MOSEK package and a Pinnacle 3 TM workstation (Philips Healthcare, Fitchburg, WI) for digital and clinical patients, respectively.

Techniques: Modification, Activity Assay, Diagnostic Assay

Journal: Medical Physics

Article Title: Toward a planning scheme for emission guided radiation therapy (EGRT): FDG based tumor tracking in a metastatic breast cancer patient

doi: 10.1118/1.4812427

Figure Lengend Snippet: EGRT simulation workflow for the clinical patient case (starting from the shaded module on the top left). The workflow is divided into four major segments: imaging, planning, EGRT delivery, and dose evaluation, which is different from that for the digital XCAT patient in the imaging and planning steps. In the imaging step, the emission data are simulated using GATE and the phase information is known a priori. In the planning step, the IMRT plan is optimized using MOSEK and the inverse planning algorithms as discussed in Sec. 2B. Note that the PTV intersection rule is implicitly implemented in the planning scheme.

Article Snippet: The IMRT plan is optimized for a planning target volume (PTV) that encompasses the tumor motion using the MOSEK package and a Pinnacle 3 TM workstation (Philips Healthcare, Fitchburg, WI) for digital and clinical patients, respectively.

Techniques: Imaging

Journal: Medical Physics

Article Title: Toward a planning scheme for emission guided radiation therapy (EGRT): FDG based tumor tracking in a metastatic breast cancer patient

doi: 10.1118/1.4812427

Figure Lengend Snippet: Dose distribution and associated DVH comparison of 3D IMRT [(a), solid lines] and hIMRT [(b), dashed-dotted lines]. The PTV and GTV are contoured using solid lines in the dose distributions.

Article Snippet: The IMRT plan is optimized for a planning target volume (PTV) that encompasses the tumor motion using the MOSEK package and a Pinnacle 3 TM workstation (Philips Healthcare, Fitchburg, WI) for digital and clinical patients, respectively.

Techniques: Comparison

Journal: Medical Physics

Article Title: Toward a planning scheme for emission guided radiation therapy (EGRT): FDG based tumor tracking in a metastatic breast cancer patient

doi: 10.1118/1.4812427

Figure Lengend Snippet: Calculation of the IMRT plan map using Pinnacle3. (a) Pinnacle3 interface for inverse planning. (b) 256-field fluence maps. (c) The central sinogram of the IMRT plan map.

Article Snippet: The IMRT plan is optimized for a planning target volume (PTV) that encompasses the tumor motion using the MOSEK package and a Pinnacle 3 TM workstation (Philips Healthcare, Fitchburg, WI) for digital and clinical patients, respectively.

Techniques:

Journal: Medical Physics

Article Title: Toward a planning scheme for emission guided radiation therapy (EGRT): FDG based tumor tracking in a metastatic breast cancer patient

doi: 10.1118/1.4812427

Figure Lengend Snippet: A summary of major simulation parameters.

Article Snippet: The IMRT plan is optimized for a planning target volume (PTV) that encompasses the tumor motion using the MOSEK package and a Pinnacle 3 TM workstation (Philips Healthcare, Fitchburg, WI) for digital and clinical patients, respectively.

Techniques: Activity Assay

Journal: Journal of Applied Clinical Medical Physics

Article Title: Does intensity modulation increase target dose calculation errors of conventional algorithms for lung SBRT ?

doi: 10.1002/acm2.12266

Figure Lengend Snippet: Patient, tumor, and plan characteristics

Article Snippet: For the Type‐A study, a dynamic conformal arc (DCA) plan as previously described and an IMRT plan were created for each patient using a pencil beam algorithm with equivalent path length heterogeneity correction in iPlan v4.5 (Brainlab AG, Feldkirchen, Germany).

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Does intensity modulation increase target dose calculation errors of conventional algorithms for lung SBRT ?

doi: 10.1002/acm2.12266

Figure Lengend Snippet: Median (range) of percentage PTV and GTV dose errors in Type‐A dose calculations comparing IMRT and DCA for the 20 patients. The bolded p values indicate statistically significant differences for the high‐dose region endpoints D5% and Dmax of both PTV and GTV, where IMRT resulted in significant lower dose errors than DCA ( p < 0.05)

Article Snippet: For the Type‐A study, a dynamic conformal arc (DCA) plan as previously described and an IMRT plan were created for each patient using a pencil beam algorithm with equivalent path length heterogeneity correction in iPlan v4.5 (Brainlab AG, Feldkirchen, Germany).

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Does intensity modulation increase target dose calculation errors of conventional algorithms for lung SBRT ?

doi: 10.1002/acm2.12266

Figure Lengend Snippet: Median (range) of percentage PTV and GTV dose errors in Type‐B dose calculations comparing IMRT vs DCA and VMAT vs DCA for the 20 patients

Article Snippet: For the Type‐A study, a dynamic conformal arc (DCA) plan as previously described and an IMRT plan were created for each patient using a pencil beam algorithm with equivalent path length heterogeneity correction in iPlan v4.5 (Brainlab AG, Feldkirchen, Germany).

Techniques: