Hannah Caine

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Unilateral lesions of the nucleus isthmi result in a scotoma to visually presented prey and threat stimuli in the contralateral monocular visual field. There is a correlation between the size of the scotoma and the amount of n. isthmi ablated. Following the lesion, there is a regression of the scotoma in the nasal part of the visual field which then(More)
Ablation of the frog's nucleus isthmi results in a visual scotoma contralateral to the lesion. Within the scotoma, animals do not respond to visually presented prey or threats. The locus of visual loss is related to the area of isthmal tissue ablated. With complete unilateral ablation, a frog displays no visually elicited prey-catching or threat-avoidance(More)
OBJECTIVE To develop a mathematical tool that can update a patient's planning target volume (PTV) partway through a course of radiation therapy to more precisely target the tumor for the remainder of treatment and reduce dose to surrounding healthy tissue. METHODS AND MATERIALS Daily on-board imaging was used to collect large datasets of displacements for(More)
AIM To describe the feasibility of image guided intensity modulated radiotherapy (IG-IMRT) using daily soft tissue matching in the treatment of bladder cancer. METHODS Twenty-eight patients with muscle-invasive carcinoma of the bladder were recruited to a protocol of definitive radiation using IMRT with accelerated hypofractionation with simultaneous(More)
AIM To compare outcomes of single-fraction and multi-fraction stereotactic ablative body radiotherapy (SABR) for pulmonary metastases. MATERIALS AND METHODS A retrospective review from two academic institutions of patients with one to three pulmonary metastases staged with (18)F-fluorodeoxyglucose positron emission tomography/computed tomography(More)
If a prostate intensity-modulated radiation therapy (IMRT) or volumetric-modulated arc therapy (VMAT) plan has protocol violations, it is often a challenge knowing whether this is due to unfavorable anatomy or suboptimal planning. This study aimed to create a model to predict protocol violations based on patient anatomical variables and their potential(More)
Collected real-life clinical target volume (CTV) displacement data show that some patients undergoing external beam radiotherapy (EBRT) demonstrate significantly more fraction-to-fraction variability in their displacement ('random error') than others. This contrasts with the common assumption made by historical recipes for margin estimation for EBRT, that(More)
The radiographer I am today is not the same radiographer I was in 1982 – my role has changed. This change did not occur by chance; it may have started out as an organic process but ended up as something that was directed and intentional. This paper reflects on my experiences in driving and advocating cultural change in radiography in my hospital and beyond.(More)
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