A novel tool for assessing the correlation of internal/external markers during SGRT guided stereotactic ablative radiotherapy treatments

Paolani, Giulia; Strolin, Silvia; Santoro, Miriam; Gala, Giuseppe Della; Tolento, G.; Guido, A.; Siepe, G.; Morganti, Alessio Giuseppe; Strigari, Lidia

doi:10.1016/j.ejmp.2021.10.021

Cited by 12 publications

(10 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some studies suggested that SGRT can be used as surrogate for internal motion during 4D-CT/CBCT or BH for individual patients [34] , [35] , [36] . Zeng et al recently discouraged using SGRT as solo monitoring method and Wang et al recommended patient-based assessment of internal/external correlation as correlation differed by a high degree for various patients [37] , [38] .…”

Section: Discussionmentioning

confidence: 99%

“…SGRT-systems have been implemented for breast radiotherapy [33] and during abdominal/thoracic SBRT [18] , [19] , [20] . However, their accuracy as surrogate for internal motion during abdominal DIBH-SBRT is still controversial and previous literature lacks comparison with internal monitoring, e.g., an US-system [18] , [23] , [34] , [35] , [36] , [37] , [38] .…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Surface guidance compared with ultrasound-based monitoring and diaphragm position in cone-beam computed tomography during abdominal stereotactic radiotherapy in breath-hold

Kaestner¹,

Streb²,

Hetjens³

et al. 2023

Physics and Imaging in Radiation Oncology

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Surface guidance compared with ultrasound-based monitoring and diaphragm position in cone-beam computed tomography during abdominal stereotactic radiotherapy in breath-hold

Kaestner¹,

Streb²,

Hetjens³

et al. 2023

Physics and Imaging in Radiation Oncology

View full text Add to dashboard Cite

“…SGRT PBT is a reported option based on repeated CBCT or CT analysis. In photon beam radiotherapy, the availability of 4D-CBCT and 4D-CT allows assessing the correlation between the tumor/hepatic dome and skin displacements, enabling an appropriate intra- and inter-fraction motion management ( 42 ). The spirometry represents the most extensively adopted solution in PBT.…”

Section: Discussionmentioning

confidence: 99%

Imaging Strategies in Proton Therapy for Thoracic Tumors: A Mini Review

Algranati

Strigari

2022

Front. Oncol.

Self Cite

View full text Add to dashboard Cite

Proton beam therapy (PBT) is often more attractive for its high gradient dose distributions than other treatment modalities with external photon beams. However, in thoracic lesions treated particularly with pencil beam scanning (PBS) proton beams, several dosimetric issues are addressed. The PBS approach may lead to large hot or cold spots in dose distributions delivered to the patients, potentially affecting the tumor control and/or increasing normal tissue side effects. This delivery method particularly benefits image-guided approaches. Our paper aims at reviewing imaging strategies and their technological trends for PBT in thoracic lesions. The focus is on the use of imaging strategies in simulation, planning, positioning, adaptation, monitoring, and delivery of treatment and how changes in the anatomy of thoracic tumors are handled with the available tools and devices in PBT. Starting from bibliographic research over the past 5 years, retrieving 174 papers, major key questions, and implemented solutions were identified and discussed; the results aggregated and presented following the methodology of analysis of expert interviews.

show abstract

“…The precision of radiation therapy administration has been enhanced by technological progress, and the growing adoption of hypofractionation has underscored the significance of ensuring accurate patient setup [1][2][3]. The most commonly used method for patient posture setup in clinics is the laser guide with skin marking, which involves drawing lines on the body of the patient or applying a tattooed reference point during the simulation and then aligning it with a laser in the treatment room.…”

Section: Introductionmentioning

confidence: 99%

“…Since the beam is non-ionizing, it allows for real-time adjustment of the positional setup during treatment, improving accuracy and efficiency [5]. In addition, studies on the application of the surface guide to patient identification, patient safety [6], and motion management are ongoing [2,7], and gating radiotherapy as well as set up in head and neck cancer [8][9][10], stereotactic radiosurgery, and breast cancer [7,[11][12][13][14][15]. This study aims to measure and compare the accuracy of the surface-guided setup.…”

Section: Introductionmentioning

confidence: 99%

Application of surface-guided radiation therapy in prostate cancer: comparative analysis of differences with skin marking-guided patient setup

Lee,

Kim,

Goh

et al. 2023

Radiat Oncol J

View full text Add to dashboard Cite

Purpose: Surface-guided radiation therapy is an image-guided method using optical surface imaging that has recently been adopted for patient setup and motion monitoring during treatment. We aimed to determine whether the surface guide setup is accurate and efficient compared to the skin-marking guide in prostate cancer treatment.Materials and Methods: The skin-marking setup was performed, and vertical, longitudinal, and lateral couch values (labeled as "M") were recorded. Subsequently, the surface-guided setup was conducted, and couch values (labeled as "S") were recorded. After performing cone-beam computed tomography (CBCT), the final couch values was recorded (labeled as "C"), and the shift value was calculated (labeled as "Gap (M-S)," "Gap (M-C)," "Gap (S-C)") and then compared. Additionally, the setup times for the skin marking and surface guides were also compared.Results: One hundred and twenty-five patients were analyzed, totaling 2,735 treatment fractions. Gap (M-S) showed minimal differences in the vertical, longitudinal, and lateral averages (-0.03 cm, 0.07 cm, and 0.06 cm, respectively). Gap (M-C) and Gap (S-C) exhibited a mean difference of 0.04 cm (p = 0.03) in the vertical direction, a mean difference of 0.35 cm (p = 0.52) in the longitudinal direction, and a mean difference of 0.11 cm (p = 0.91) in the lateral direction. There was no correlation between shift values and patient characteristics. The average setup time of the skin-marking guide was 6.72 minutes, and 7.53 minutes for the surface guide. Conclusion: There was no statistically significant difference between the surface and skin-marking guides regarding final CBCT shift values and no correlation between translational shift values and patient characteristics. We also observed minimal difference in setup time between the two methods. Therefore, the surface guide can be considered an accurate and time-efficient alternative to skin-marking guides.

show abstract

A novel tool for assessing the correlation of internal/external markers during SGRT guided stereotactic ablative radiotherapy treatments

Cited by 12 publications

References 17 publications

Surface guidance compared with ultrasound-based monitoring and diaphragm position in cone-beam computed tomography during abdominal stereotactic radiotherapy in breath-hold

Surface guidance compared with ultrasound-based monitoring and diaphragm position in cone-beam computed tomography during abdominal stereotactic radiotherapy in breath-hold

Imaging Strategies in Proton Therapy for Thoracic Tumors: A Mini Review

Application of surface-guided radiation therapy in prostate cancer: comparative analysis of differences with skin marking-guided patient setup

Contact Info

Product

Resources

About