E2E® SBRT Phantom with Removable Spine

Model 036S-CVXX-xx

The high dose per fraction associated with SBRT necessitates a high degree of accuracy in target localization and dose delivery. Small errors can result in significant under treatment of portions of the tumor volume and over dosage of nearby normal tissues. The E2E ® SBRT Phantom with Removable Spine provides a means to check the entire treatment chain during commissioning and routine QA.

Our Model 036S-CVXX-xx* is an anthropomorphic thorax body containing articulated spine, ribs, and lungs. All materials are suitable for use in kV and MV energies. The thorax section contains two lung tumor volumes with ionization chamber cavities in the center of each target*. The phantom also includes a lung insert with an irregular-shaped lung target. The proximity of the lung target to the vertebral body allows clinicians to measure high-resolution dose distribution to the target and dose to the spinal cord in a single delivery. The surface of the thorax body is machined with concentric circle targets and alignment marks for daily system checks.

Our Model 036S has more options for dose verification in the spine as an organ at risk, including a removable split spine. The removable spine facilitates the use of radiochromic film in the sagittal orientation in the inferior half of the spine rod. Ion chambers cavities are located in the spinal cord and the vertebrae in the superior half of the removable spine rod. Alignment marks at 0, 90, 180 & 270 degrees allow for consistent re-positioning. Precision-cut films with integral registration holes are available for both the lung insert and spine insert.

An optional abdominal section (Model 036-01) with 3D spine anatomy for film and nanoDotTM dosimetry is available separately. It can also accommodate the CBCT Image Quality phantom (Model 062QA-35). The Model 036-01 provides extra bolus to allow dose assessments with the abdomen due to non-coplanar beams.

  • Thorax with articulated spine, ribs and lungs
  • Optional Abdomen with film insert
  • High Resolution Anthropomorphic Characteristics
  • Center point fiducial and offset target for daily system checks
  • Ideal for commissioning an SBRT program
  • Excellent test environment for Monte Carlo dose calculation verification
  • Supports use and testing of Image Guidance capabilities

*Customer must specify chamber at time of purchase. Refer to CIRS cavity codes at www.cirsinc.com/support for corresponding CV number.

NOTE: This product or an optional accessory of this product requires a CIRS dosimetry cavity code before an order can be placed. Please refer to the Dosimetry Cavity Codes document to identify the CIRS code for the probe you intend to use with this product.

Data Sheet

E2E SBRT Phantom With Removable Spine: Data Sheet


E2E SBRT Phantom With Removable Spine: Brochure

Dosimetry Cavity Codes

Cavity Codes for Dosimetry Devices

Badra, Eugenia Vlaskou; Baumgartl, Michael; Fabiano, Silvia; Jongen, Aurélien; Guckenberger, Matthias; 'Stereotactic radiotherapy for early stage non-small cell lung cancer: current standards and ongoing research'. Translational Lung Cancer Research. 2021; 10 (4): 1930. AME Publications. View

Summary: "End-to-end tests are powerful tools in QA protocols to ensure the reliability of the entire treatment chain through sufficient imaging protocols for the planning CT, image reconstruction, data transfer, treatment planning system performance, motion management, and irradiation of dummy treatment plans on QA phantoms and comparing calculated with measured data."
Dwivedi, Shekhar; Kansal, Sandeep; Shukla, Jooli; Bharati, Avinav; Dangwal, Vinod Kumar; 'Dosimetric evaluation of different planning techniques based on flattening filter-free beams for central and peripheral lung stereotactic body radiotherapy'. Biomedical Physics & Engineering Express. 2021; IOP Publishing. View
Shaw, Maddison; Lye, Jessica; Alves, Andrew; Hanlon, Maximilian; Lehmann, Joerg; Supple, Jeremy; Porumb, Claudiu; Williams, Ivan; Geso, Moshi; Brown, Rhonda; 'Measuring the dose in bone for spine stereotactic body radiotherapy'. Physica Medica. 2021; Elsevier. View
Tajik, Mahdieh; Akhlaqi, Mohammad Mohsen; Gholami, Somayeh; 'Advances in anthropomorphic thorax phantoms for radiotherapy: a review'. Biomedical Physics & Engineering Express. 2021; IOP Publishing. View
Howard, Helen P; 'Development of a technique using VMAT and robust optimisation to replace the use of surface bolus during radiotherapy for patients post-mastectomy.'. 2021; The University of Manchester. View

Summary: A modified version of the 36S thorax phantom, with an added breast attachement, was used to compare surface doses delivered using conventional surface bolus treatments of breast cancer to a new VMAT-based method.
Maddison Shaw, Jessica Lye, Andrew Alves, Maximilian Hanlon, Joerg Lehmann, Jeremy Supple, Claudiu Porumb, Ivan Williams, Moshi Geso, Rhonda Brown 'Measuring the dose in bone for spine stereotactic body radiotherapy'. Physica Medica. 2021; 84: 265-273. Elsevier. View
Bonanno, E; Cavalli, N; Stella, G; D'Agostino, A; Girlando, A; Pisasale, G; Ricottone, N; Marino, C; 'Commissioning of a new commercial Optically Stimulated Luminescence (OSL) dosimetry system for VMAT treatments verifications'. Journal of Instrumentation. 2020; 15 (5): P05027. IOP Publishing. View
Delombaerde, Laurence; Petillion, Saskia; Weltens, Caroline; De Roover, Robin; Reynders, Truus; Depuydt, Tom; 'Development of 3D‐printed breast phantoms for end‐to‐end testing of whole breast volumetric arc radiotherapy'. Journal of Applied Clinical Medical Physics. 2020; 21 (8): 315-320. Wiley Online Library. View
Dumas, Michael; Laugeman, Eric; Sevak, Parag; Snyder, Karen C; Mao, Weihua; Chetty, Indrin J; Ajlouni, Munther; Wen, Ning; 'Comparison of the internal target volume (ITV) contours and dose calculations on 4DCT, average CBCT, and 4DCBCT imaging for lung stereotactic body radiation therapy (SBRT)'. Journal of applied clinical medical physics. 2020; 21 (11): 288-294. Wiley Online Library. View
Dhont, Jennifer; Verellen, Dirk; Mollaert, Isabelle; Vanreusel, Verdi; Vandemeulebroucke, Jef; 'RealDRR–rendering of realistic digitally reconstructed radiographs using locally trained image-to-image translation'. Radiotherapy and Oncology. 2020; 153: 213-219. Elsevier. View