The current Small Animal Radiation Research Platform (SARRP) is poor for localizing small soft tissue targets for irradiation or tumor models growing in a soft tissue environment. Therefore, an imaging method complementary to x-ray CT is required to localize the soft tissue target’s Center of Mass (CoM) to within 1 mm. In this paper, we report the development of an integrated x-ray/bioluminescence imaging/tomography (BLI/BLT) system to provide a pre-clinical, high resolution irradiation system. This system can be used to study radiation effects in small animals under the conebeam computed tomography (CBCT) imaging guidance by adding the bioluminescence imaging (BLI) system as a standalone system which can also be docked onto the SARRP. The proposed system integrates two robotic rotating stages and an x-ray source rated at maximum 130 kVp and having a small variable focal spot. A high performance and low noise CCD camera mounted in a light-tight housing along with an optical filter assembly is used for multiwavelength BL imaging and tomography. A three-mirror arrangement is implemented to eliminate the need of rotating the CCD camera for acquiring multiple views. The mirror system is attached to a motorized stage to capture images in angles between 0-90o (for the standalone system). C
S. Eslami ; Y. Yang ; J. Wong ; M. S. Patterson ; I. Iordachita
Download Paper
Resources
From Australia to Brazil: sun worshippers beware
Skin cancer incidence is increasing worldwide as fair-skinned populations seek the sun without realizing the risks. Sarah Cumberland and Claudia Jurberg report on how Australia and Brazil are tackling this health issue. World Health Organization Download Paper
Accuracy of off-line bioluminescence imaging to localize targets in preclinical radiation research
In this study, we investigated the accuracy of using off-line bioluminescence imaging (BLI) and tomography (BLT) to guide irradiation of small soft tissue targets on a small animal radiation research platform (SARRP) with on-board cone beam CT (CBCT) capability. A...
Radiotherapy for calcaneodynia. Results of a single center prospective randomized dose optimization trial.
PURPOSE: The aim of this work was to compare the efficacy of two different dose fractionation schedules for radiotherapy of patients with calcaneodynia. PATIENTS AND METHODS: Between February 2006 and April 2010, 457 consecutive evaluable patients were recruited for...
Orthovoltage radiotherapy in the management of medial canthal basal cell carcinoma
AIMS: To report the local control and complication rates of orthovoltage radiotherapy in the management of medial canthal basal cell carcinoma (BCC). METHODS: The medical records of all patients treated with medial canthal BCC between 1998 and 2010, with orthovoltage...
High throughput film dosimetry in homogeneous and heterogeneous media for a small animal irradiator
PURPOSE: We have established a high-throughput Gafchromic film dosimetry protocol for narrow kilo-voltage beams in homogeneous and heterogeneous media for small-animal radiotherapy applications. The kV beam characterization is based on extensive Gafchromic film...
Outcome of patients treated with a single-fraction dose of palliative radiation for cutaneous T-cell lymphoma
PURPOSE: Cutaneous T-cell lymphoma (CTCL) is a radiosensitive tumor. Presently, treatment with radiation is given in multiple fractions. The current literature lacks data that support single-fraction treatment for CTCL. This retrospective review assesses the clinical...
Clinical variants, stages, and management of basal cell carcinoma
Basal cell carcinoma (BCC) is the most common paraneoplastic disease among human neoplasms. The tumor affects mainly photoexposed areas, most often in the head and seldom appears on genitalia and perigenital region. BCC progresses slowly and metastases are found in...
Anti-PD-1 blockade and stereotactic radiation produce long-term survival in mice with intracranial gliomas
PURPOSE: Glioblastoma multiforme (GBM) is the most common primary brain tumor in adults, and radiation is one of the main treatment modalities. However, cure rates remain low despite best available therapies. Immunotherapy is a promising modality that could work...