CT Number

A normalized quantifier of the attenuation coefficient which is imaged in a CT scanner. The resulting encountered values are Hounsfield units and… Expand
National Institutes of Health

Papers overview

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2017
2017
Assessment of treatment response during chemoradiation therapy for pancreatic cancer based on quantitative radiomic analysis of daily CTs: An exploratory study
PURPOSE In an effort for early assessment of treatment response, we investigate radiation induced changes in quantitative CT… Expand
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2017
2017
Impact of head and neck intensity modulated radiation therapy on CT numbers of primary and nodal Gross tumour volume
Introduction: CT number (CTN) for the gross tumour volumes (GTV) can change with radiation therapy which could be an early… Expand
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2016
2016
Radiation-induced CT number changes in GTV and parotid glands during the course of radiation therapy for nasopharyngeal cancer.
OBJECTIVE To investigate the changes in CT number (CTN) in gross tumour volume (GTV) and organs at risk (OARs) during the course… Expand
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2015
2015
Computed tomography number changes observed during computed tomography-guided radiation therapy for head and neck cancer.
PURPOSE To investigate CT number (CTN) changes in gross tumor volume (GTV) and organ at risk (OAR) according to daily diagnostic… Expand
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2015
2015
The impact of CT scan energy on range calculation in proton therapy planning.
The purpose of this study was to investigate the impact of tube potential (kVp) on the CT number (HU) to proton stopping power… Expand
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2015
2015
SU‐E‐J‐271: Correlation of CT Number Change with Radiation Treatment Response for Pancreatic Cancer
Purpose: It has been reported recently that radiation can induce CT number (CTN) change during radiation therapy (RT) delivery… Expand
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2014
2014
SU-E-J-190: Characterization of Radiation Induced CT Number Changes in Tumor and Normal Lung During Radiation Therapy for Lung Cancer.
PURPOSE To measure CT number (CTN) changes in tumor and normal lung as a function of radiation therapy (RT) dose during the… Expand
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2013
2013
SU‐E‐J‐194: Radiation‐Induced CT Number Changes Observed During Radiotherapy for Head and Neck Cancer
Purpose: To characterize radiation‐induced CT number (CTN) changes in tumor from the CT data acquired during IGRT for head and… Expand
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2011
2011
CTC-ask: a new algorithm for conversion of CT numbers to tissue parameters for Monte Carlo dose calculations applying DICOM RS knowledge.
One of the building blocks in Monte Carlo (MC) treatment planning is to convert patient CT data to MC compatible phantoms… Expand
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2000
2000
CT lung densitometry in assessing intralobular air content. An experimental and clinical study.
PURPOSE To introduce a parameter called "intralobular air content percentage" to replace the CT number of the lung and to… Expand
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