Publications by authors named "Eric K Hansen"
Article Synopsis
- - Ledderhose disease, characterized by plantar fibromas, is histologically similar to Dupuytren disease, which has been treated with radiotherapy for a long time.
- - Conservative treatments, like orthotic devices, can help manage symptoms of plantar fibromas, but they do not offer a cure.
- - Surgery is the primary treatment option, though it has a high failure rate, making radiotherapy a promising new alternative with encouraging results for managing this condition.
Intensity-modulated radiotherapy for head-and-neck cancer in the community setting.
Int J Radiat Oncol Biol Phys
November 2008
Purpose: To review outcomes with intensity-modulated radiation therapy (IMRT) in the community setting for the treatment of nasopharyngeal and oropharyngeal cancer.
Methods And Materials: Between April 2003 and April 2007, 69 patients with histologically confirmed cancer of the nasopharynx and oropharynx underwent IMRT in our practice. The primary sites included nasopharynx (11), base of tongue (18), and tonsil (40).
Article Synopsis
- Accurate treatment setup is crucial for head and neck patients undergoing intensity-modulated radiation therapy; conventional methods mainly detect translational errors while rotational errors are often overlooked.
- This study compares a new computer program that measures both translational and rotational setup errors against a standard commercial treatment planning system in patients who have experienced significant weight loss or tumor shrinkage.
- Results showed that the new program identified larger rotational shifts, which often correlated with greater translational discrepancies between the two methods, highlighting the importance of addressing rotational errors in treatment planning.
Results of the 2004 Association of Residents in Radiation Oncology (ARRO) survey.
Int J Radiat Oncol Biol Phys
November 2006
Purpose: The aim of this study was to document adequacy of training, career plans after residency, use of the in-service examination, and motivation for choice of radiation oncology as a specialty.
Methods And Materials: In 2004, the Association of Residents in Radiation Oncology (ARRO) conducted a nationwide survey of all radiation oncology residents in the United States.
Results: The survey was returned by 297 residents (response rate, 54%).
Purpose: This report describes a new image-guided radiotherapy (IGRT) technique using megavoltage cone-beam computed tomography (MV-CBCT) to treat paraspinous tumors in the presence of orthopedic hardware.
Methods And Materials: A patient with a resected paraspinous high-grade sarcoma was treated to 59.4 Gy with an IMRT plan.
Repeat CT imaging and replanning during the course of IMRT for head-and-neck cancer.
Int J Radiat Oncol Biol Phys
February 2006
Purpose: Many patients with head-and-neck (H&N) cancer have tumor shrinkage and/or weight loss during the course of radiotherapy. We conducted this retrospective study to determine the dosimetric effects of repeat computed tomography (CT) imaging and replanning during the course of intensity-modulated radiotherapy (IMRT) on both normal tissues and target volumes.
Methods And Materials: A retrospective chart review identified 13 patients with H&N cancer treated with IMRT who had repeat CT imaging and replanning during the course of radiotherapy.
Septic pericarditis, aortic endarteritis, and osteomyelitis in a dog.
J Am Anim Hosp Assoc
August 2007
A 7-year-old, female spayed rottweiler was referred with a history of an acute onset of collapse attributable to cardiac tamponade. Thoracic radiographs revealed an enlarged cardiac silhouette compatible with pericardial effusion, sternal osteomyelitis, and an unusual mineralized lesion determined later to be within the aortic wall. The pericardial effusion was a septic exudate secondary to infection with Staphylococcus species and hemorrhage into the pericardium through a mineralized aortic lesion.
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