Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: The setup of the 3D laser tracker in the CT scanner room (a) including the SimRT camera pod (b), the reflectors for the laser tracker (c), CT scanner (d), CIRS phantom setup with laser tracker (e), reflectors placed on the surrogate (f), and a Faro reflector (g). 3D, 3‐dimensional; CT, computed tomography.

Article Snippet: Therefore, the SimRT surface‐guided respiratory monitoring system has been installed on a Siemens CT scanner.

Techniques: Computed Tomography

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Experimental setup at the Somatom Confidence CT room (a) including the CIRS Phantom (b), sponge (c), Anzai belt (d), Anzai laptop (e), SimRT camera pod (f), reference capture with patch in grey (g), styrodur block in green including three imaging rods in pink (h), and the calibration plate (80 × 60) cm (i). CT, computed tomography; CIRS, Computerized Imaging Reference Systems.

Article Snippet: Therefore, the SimRT surface‐guided respiratory monitoring system has been installed on a Siemens CT scanner.

Techniques: Blocking Assay, Imaging, Computed Tomography

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Six breathing patterns measured by Anzai and SimRT using the CIRS phantom compared with the ground‐truth. A = amplitude; C1 = cos 4 (A = 2 mm, without CT); C1* = cos 4 (A = 2 mm, during CT); C5 = cos 4 (A = 16 mm, without CT); C5* = cos 4 (A = 16 mm, during CT). CT, computed tomography; CIRS, Computerized Imaging Reference Systems; IRV, volunteer with irregular breathing pattern; MAD, mean absolute deviation; RV, volunteer with regular breathing pattern.

Article Snippet: Therefore, the SimRT surface‐guided respiratory monitoring system has been installed on a Siemens CT scanner.

Techniques: Computed Tomography, Imaging

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Summary of real, tag peak‐to‐peak amplitudes and MADs between the ground‐truth and measurements recorded by SimRT and Anzai for all regular and irregular breathing patterns.

Article Snippet: Therefore, the SimRT surface‐guided respiratory monitoring system has been installed on a Siemens CT scanner.

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Precision of tagging for peaks and valleys showing the time difference between real and tag values determined by the SimRT and Anzai algorithms for regular and irregular breathing patterns, respectively.

Article Snippet: Therefore, the SimRT surface‐guided respiratory monitoring system has been installed on a Siemens CT scanner.

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Tracking performance of SimRT illustrating the surrogate tracking in AP using a 16 mm peak‐to‐peak amplitude. Maximal SD was ±0.29 mm in AP for 75% exhale. A Styrodur was used here as a surrogate. AP, anteroposterior; Ex, exhale; IS, inferior‐superior; In, inhale; LR, left‐right.

Article Snippet: Therefore, the SimRT surface‐guided respiratory monitoring system has been installed on a Siemens CT scanner.

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Tumor trajectory inside the CIRS phantom in LR, IS, and AP directions using 10, 16, and 10 mm for the first experiment A (upper three diagrams) and 2 mm for the second B (lower three diagrams). Maximal SD was ±1.4 mm in AP, ±0.7 mm in IS, and ±0.3 mm in IS for Anzai, SimRT and Static, respectively. A sponge was used here as a surrogate. AP, anteroposterior; Ex, exhale; IS, inferior‐superior; In, inhale; Static, static 3DCT scan; LR, left‐right; SD, standard deviation.

Article Snippet: Therefore, the SimRT surface‐guided respiratory monitoring system has been installed on a Siemens CT scanner.

Techniques: Standard Deviation

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Axial mid‐position sections of the 4DCT images reconstructed by using breathing patterns from both Anzai and SimRT compared to the static 3DCT.

Article Snippet: Therefore, the SimRT surface‐guided respiratory monitoring system has been installed on a Siemens CT scanner.

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Investigating the effects of table movement and sag on optical surrogate‐driven respiratory‐guided computed tomography

doi: 10.1002/acm2.14565

Figure Lengend Snippet: Table sag response to varying loads ranging from a non‐weighted scenario up to an additional weight of 130 kg for different surrogate systems: (a) RGSC, (b) SimRT, and (c) Polaris.

Article Snippet: We evaluated three surrogate systems: Respiratory Gating for Scanner (RGSC; version 1.1.25.0, Varian Medical Systems, Inc. Palo Alto, California, USA), SimRT (version 7.2, VisionRT, London, UK), and a Polaris Spectra (Northern Digital Inc., Waterloo, Canada).

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Investigating the effects of table movement and sag on optical surrogate‐driven respiratory‐guided computed tomography

doi: 10.1002/acm2.14565

Figure Lengend Snippet: Table sag for different optical surrogate systems in dependency of weight and longitudinal table sag profile in dependency of position and weight.

Article Snippet: We evaluated three surrogate systems: Respiratory Gating for Scanner (RGSC; version 1.1.25.0, Varian Medical Systems, Inc. Palo Alto, California, USA), SimRT (version 7.2, VisionRT, London, UK), and a Polaris Spectra (Northern Digital Inc., Waterloo, Canada).

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Investigating the effects of table movement and sag on optical surrogate‐driven respiratory‐guided computed tomography

doi: 10.1002/acm2.14565

Figure Lengend Snippet: Response of the different surrogate systems for the weighted and the situation with no weight in a 4DCT acquisition. (a) RGSC breathing signal, (b) SimRT breathing signal, (c) Polaris table signal tracking the 3D printed tool, (d) Polaris breathing signal in green, Polaris table signal in blue, Polaris table movement corrected signal in yellow for the 4DCT acquisition.

Article Snippet: We evaluated three surrogate systems: Respiratory Gating for Scanner (RGSC; version 1.1.25.0, Varian Medical Systems, Inc. Palo Alto, California, USA), SimRT (version 7.2, VisionRT, London, UK), and a Polaris Spectra (Northern Digital Inc., Waterloo, Canada).

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Investigating the effects of table movement and sag on optical surrogate‐driven respiratory‐guided computed tomography

doi: 10.1002/acm2.14565

Figure Lengend Snippet: Response of the different surrogate systems for the weighted and the situation with no weight in a DIBH acquisition. (a) SimRT breathing signal, (b) RGSC breathing signal, (c) Polaris breathing signal in orange, Polaris table signal in blue, Polaris table movement corrected signal in yellow, (d) Polaris table signal tracking the 3D printed tool, (e) top and middle images show the threshold set in SimRT (white on the left graph and in blue on the RTC) for the non‐weighted situation and the bottom image shows weight being added between breath‐holds and its impact on the RTC. The yellow star indicates the breathing state, which the RTC displays.

Article Snippet: We evaluated three surrogate systems: Respiratory Gating for Scanner (RGSC; version 1.1.25.0, Varian Medical Systems, Inc. Palo Alto, California, USA), SimRT (version 7.2, VisionRT, London, UK), and a Polaris Spectra (Northern Digital Inc., Waterloo, Canada).

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Investigating the effects of table movement and sag on optical surrogate‐driven respiratory‐guided computed tomography

doi: 10.1002/acm2.14565

Figure Lengend Snippet: Illustration of a typical patient's (83 years, 76.8 kg) curve obtained by the two camera systems RGSC and SimRT in a breathing‐adapted axial 4DCT scan.

Article Snippet: We evaluated three surrogate systems: Respiratory Gating for Scanner (RGSC; version 1.1.25.0, Varian Medical Systems, Inc. Palo Alto, California, USA), SimRT (version 7.2, VisionRT, London, UK), and a Polaris Spectra (Northern Digital Inc., Waterloo, Canada).

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Experimental setup at the Somatom Confidence CT room (a) including the CIRS Phantom (b), sponge (c), Anzai belt (d), Anzai laptop (e), SimRT camera pod (f), reference capture with patch in grey (g), styrodur block in green including three imaging rods in pink (h), and the calibration plate (80 × 60) cm (i). CT, computed tomography; CIRS, Computerized Imaging Reference Systems.

Article Snippet: A dynamic thorax phantom was used to reproduce regular and irregular breathing patterns acquired by SimRT and Anzai.

Techniques: Blocking Assay, Imaging, Computed Tomography

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Six breathing patterns measured by Anzai and SimRT using the CIRS phantom compared with the ground‐truth. A = amplitude; C1 = cos 4 (A = 2 mm, without CT); C1* = cos 4 (A = 2 mm, during CT); C5 = cos 4 (A = 16 mm, without CT); C5* = cos 4 (A = 16 mm, during CT). CT, computed tomography; CIRS, Computerized Imaging Reference Systems; IRV, volunteer with irregular breathing pattern; MAD, mean absolute deviation; RV, volunteer with regular breathing pattern.

Article Snippet: A dynamic thorax phantom was used to reproduce regular and irregular breathing patterns acquired by SimRT and Anzai.

Techniques: Computed Tomography, Imaging

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Summary of real, tag peak‐to‐peak amplitudes and MADs between the ground‐truth and measurements recorded by SimRT and Anzai for all regular and irregular breathing patterns.

Article Snippet: A dynamic thorax phantom was used to reproduce regular and irregular breathing patterns acquired by SimRT and Anzai.

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Precision of tagging for peaks and valleys showing the time difference between real and tag values determined by the SimRT and Anzai algorithms for regular and irregular breathing patterns, respectively.

Article Snippet: A dynamic thorax phantom was used to reproduce regular and irregular breathing patterns acquired by SimRT and Anzai.

Techniques:

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Tumor trajectory inside the CIRS phantom in LR, IS, and AP directions using 10, 16, and 10 mm for the first experiment A (upper three diagrams) and 2 mm for the second B (lower three diagrams). Maximal SD was ±1.4 mm in AP, ±0.7 mm in IS, and ±0.3 mm in IS for Anzai, SimRT and Static, respectively. A sponge was used here as a surrogate. AP, anteroposterior; Ex, exhale; IS, inferior‐superior; In, inhale; Static, static 3DCT scan; LR, left‐right; SD, standard deviation.

Article Snippet: A dynamic thorax phantom was used to reproduce regular and irregular breathing patterns acquired by SimRT and Anzai.

Techniques: Standard Deviation

Journal: Journal of Applied Clinical Medical Physics

Article Title: Comparative evaluation of a surface‐based respiratory monitoring system against a pressure sensor for 4DCT image reconstruction in phantoms

doi: 10.1002/acm2.14174

Figure Lengend Snippet: Axial mid‐position sections of the 4DCT images reconstructed by using breathing patterns from both Anzai and SimRT compared to the static 3DCT.

Article Snippet: A dynamic thorax phantom was used to reproduce regular and irregular breathing patterns acquired by SimRT and Anzai.

Techniques: