MGH head 1:MGH head 1 - Revision history

Guerin at 18:44, 24 March 2015

2015-03-24T18:44:04Z

← Older revision		Revision as of 14:44, 24 March 2015
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	[[File:giorgio_phant.jpg\|200px\|thumb\|right\|]]		[[File:giorgio_phant.jpg\|200px\|thumb\|right\|]]
	=== Citation ===		=== Citation ===
	~~If you use any of the material below, please don't forget to cite:~~

	Nadine N. Graedel, Jonathan R. Polimeni, Bastien Guerin, Borjan Gagoski and Lawrence L. Wald (2015). "An anatomically realistic temperature phantom for radiofrequency heating measurements". Magnetic Resonance in Medicine 73(1):442–450		Nadine N. Graedel, Jonathan R. Polimeni, Bastien Guerin, Borjan Gagoski and Lawrence L. Wald (2015). "An anatomically realistic temperature phantom for radiofrequency heating measurements". Magnetic Resonance in Medicine 73(1):442–450

Guerin at 18:35, 24 March 2015

2015-03-24T18:35:12Z

← Older revision		Revision as of 14:35, 24 March 2015
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	=== Phantom description ===		=== Phantom description ===
	This phantom is based on a 1mm isotropic segmented head model which was labeled as described in [http://www.ncbi.nlm.nih.gov/pubmed/18985401 ~~MRI-based anatomical model of the human head for specific absorption rate mapping~~].		This phantom is based on a 1mm isotropic segmented head model which was labeled as described in [http://www.ncbi.nlm.nih.gov/pubmed/18985401 Makris et al].

	The segmented head data was converted into a simplified surface model with two compartments: Brain and other soft tissues. Bone and air (both low epsilon, low conductivity) are printed together out of plastic material with similar electrical properties.		The segmented head data was converted into a simplified surface model with two compartments: Brain and other soft tissues. Bone and air (both low epsilon, low conductivity) are printed together out of plastic material with similar electrical properties.

Guerin at 18:34, 24 March 2015

2015-03-24T18:34:31Z

← Older revision		Revision as of 14:34, 24 March 2015
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	=== Citation ===		=== Citation ===
	If you use any of the material below, please don't forget to cite:		If you use any of the material below, please don't forget to cite:

	Nadine N. Graedel, Jonathan R. Polimeni, Bastien Guerin, Borjan Gagoski and Lawrence L. Wald (2015). "An anatomically realistic temperature phantom for radiofrequency heating measurements". Magnetic Resonance in Medicine 73(1):442–450		Nadine N. Graedel, Jonathan R. Polimeni, Bastien Guerin, Borjan Gagoski and Lawrence L. Wald (2015). "An anatomically realistic temperature phantom for radiofrequency heating measurements". Magnetic Resonance in Medicine 73(1):442–450

Guerin at 18:34, 24 March 2015

2015-03-24T18:34:06Z

← Older revision		Revision as of 14:34, 24 March 2015
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			[[File:giorgio_phant.jpg\|200px\|thumb\|right\|]]
	=== Citation ===		=== Citation ===
	~~[[File:giorgio_phant.jpg\|200px\|thumb\|right\|]]~~		If you use any of the material below, please don't forget to cite:
	If you use any of the material below, please cite:
	Nadine N. Graedel, Jonathan R. Polimeni, Bastien Guerin, Borjan Gagoski and Lawrence L. Wald (2015). "An anatomically realistic temperature phantom for radiofrequency heating measurements". Magnetic Resonance in Medicine 73(1):442–450		Nadine N. Graedel, Jonathan R. Polimeni, Bastien Guerin, Borjan Gagoski and Lawrence L. Wald (2015). "An anatomically realistic temperature phantom for radiofrequency heating measurements". Magnetic Resonance in Medicine 73(1):442–450

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	The segmented head data was converted into a simplified surface model with two compartments: Brain and other soft tissues. Bone and air (both low epsilon, low conductivity) are printed together out of plastic material with similar electrical properties.		The segmented head data was converted into a simplified surface model with two compartments: Brain and other soft tissues. Bone and air (both low epsilon, low conductivity) are printed together out of plastic material with similar electrical properties.

	=== Special considerations ==		=== Special considerations ===
	The sealing flange uses an o-ring.		The sealing flange uses an o-ring.

	[[File:Phantom_figure_CT_MR.png\|400px\|thumb\|right\|]]		[[File:Phantom_figure_CT_MR.png\|400px\|thumb\|right\|]]

Guerin at 18:33, 24 March 2015

2015-03-24T18:33:23Z

← Older revision		Revision as of 14:33, 24 March 2015
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	== ~~MGH head 1~~ ==		=== Citation ===
	[[File:giorgio_phant.jpg\|200px\|thumb\|right\|]]		[[File:giorgio_phant.jpg\|200px\|thumb\|right\|]]
	*This is a head phantom ~~based on a 1mm isotropic resolution MR dataset which was anatomically segmented and used as a numerical model~~ for ~~electromagnetics calculations as described~~ in:		If you use any of the material below, please cite:
	~~Makris et al.~~		Nadine N. Graedel, Jonathan R. Polimeni, Bastien Guerin, Borjan Gagoski and Lawrence L. Wald (2015). "An anatomically realistic temperature phantom for radiofrequency heating measurements". Magnetic Resonance in Medicine 73(1):442–450

	[~~http~~://~~www~~.~~ncbi~~.~~nlm.nih.gov~~/~~pubmed~~/~~18985401 MRI-based anatomical~~ model ~~of the human head for specific absorption rate mapping~~.		=== Download files ===
			Click [https://phantoms.martinos.org/images/3/36/MGH_head_1.zip here] to download the CAD model.

	*We have taken this anatomically labeled head ~~from a pixel~~ model ~~to a mesh model and created a phantom with 2 fluid compartments; 1) brain, and 2) other soft tissues (see figure below)~~. ~~The idea is that materials that are electrically similar are grouped together~~. ~~Thus bone and air (both low epsilon, low conductivity) are done in plastic (also low e, low conductivity), and the tissue compartments can be filled with appropriate fluids~~. ~~Also shown on the figure below is a CT scan of the phantom and an~~ MRI of the ~~filled phantom~~.		=== Phantom description ===
			This phantom is based on a 1mm isotropic segmented head model which was labeled as described in [http://www.ncbi.nlm.nih.gov/pubmed/18985401 MRI-based anatomical model of the human head for specific absorption rate mapping].

	~~[https~~:~~//phantoms.martinos.org/images/3/36/MGH_head_1~~.~~zip Click here for .skp~~ and ~~stl files] to download files for the anthropomorthic head phantom published in Graedel et al MRM 2014~~.		The segmented head data was converted into a simplified surface model with two compartments: Brain and other soft tissues. Bone and air (both low epsilon, low conductivity) are printed together out of plastic material with similar electrical properties.

			=== Special considerations ==
	The sealing flange uses an o-ring.		The sealing flange uses an o-ring.

	~~'''3D printing tips'''~~

	*Be sure to see our info on the first page concerning sealing phantoms created by addive technology 3D printers. Normally these are porous and do not hold water; they need a sealing step.

	[[File:Phantom_figure_CT_MR.png\|400px\|thumb\|right\|]]		[[File:Phantom_figure_CT_MR.png\|400px\|thumb\|right\|]]

Lapierre at 15:50, 25 November 2014

2014-11-25T15:50:43Z

← Older revision		Revision as of 11:50, 25 November 2014
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	*We have taken this anatomically labeled head from a pixel model to a mesh model and created a phantom with 2 fluid compartments; 1) brain, and 2) other soft tissues (see figure below). The idea is that materials that are electrically similar are grouped together. Thus bone and air (both low epsilon, low conductivity) are done in plastic (also low e, low conductivity), and the tissue compartments can be filled with appropriate fluids. Also shown on the figure below is a CT scan of the phantom and an MRI of the filled phantom.		*We have taken this anatomically labeled head from a pixel model to a mesh model and created a phantom with 2 fluid compartments; 1) brain, and 2) other soft tissues (see figure below). The idea is that materials that are electrically similar are grouped together. Thus bone and air (both low epsilon, low conductivity) are done in plastic (also low e, low conductivity), and the tissue compartments can be filled with appropriate fluids. Also shown on the figure below is a CT scan of the phantom and an MRI of the filled phantom.

	[https://~~gate~~.~~nmr~~.~~mgh.harvard.edu~~/~~wiki~~/~~Phantoms~~/~~images~~/MGH_head_1.zip Click here for .skp and stl files] to download files for the anthropomorthic head phantom published in Graedel et al MRM 2014.		[https://phantoms.martinos.org/images/3/36/MGH_head_1.zip Click here for .skp and stl files] to download files for the anthropomorthic head phantom published in Graedel et al MRM 2014.

	The sealing flange uses an o-ring.		The sealing flange uses an o-ring.

Wald at 19:20, 23 December 2013

2013-12-23T19:20:52Z

← Older revision		Revision as of 15:20, 23 December 2013
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	[https://gate.nmr.mgh.harvard.edu/wiki/Phantoms/images/MGH_head_1.zip Click here for .skp and stl files] to download files for the anthropomorthic head phantom published in Graedel et al MRM 2014.		[https://gate.nmr.mgh.harvard.edu/wiki/Phantoms/images/MGH_head_1.zip Click here for .skp and stl files] to download files for the anthropomorthic head phantom published in Graedel et al MRM 2014.

			The sealing flange uses an o-ring.

	'''3D printing tips'''		'''3D printing tips'''

Wald at 19:19, 23 December 2013

2013-12-23T19:19:48Z

← Older revision		Revision as of 15:19, 23 December 2013
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	[http://www.ncbi.nlm.nih.gov/pubmed/18985401 MRI-based anatomical model of the human head for specific absorption rate mapping.		[http://www.ncbi.nlm.nih.gov/pubmed/18985401 MRI-based anatomical model of the human head for specific absorption rate mapping.

	We have taken this anatomically labeled head from a pixel model to a mesh model and created a phantom with 2 fluid compartments; 1) brain, and 2) other soft tissues (see figure below). The idea is that materials that are electrically similar are grouped together. Thus bone and air (both low epsilon, low conductivity) are done in plastic (also low e, low conductivity), and the tissue compartments can be filled with appropriate fluids. Also shown on the figure below is a CT scan of the phantom and an MRI of the filled phantom.		*We have taken this anatomically labeled head from a pixel model to a mesh model and created a phantom with 2 fluid compartments; 1) brain, and 2) other soft tissues (see figure below). The idea is that materials that are electrically similar are grouped together. Thus bone and air (both low epsilon, low conductivity) are done in plastic (also low e, low conductivity), and the tissue compartments can be filled with appropriate fluids. Also shown on the figure below is a CT scan of the phantom and an MRI of the filled phantom.

	[https://gate.nmr.mgh.harvard.edu/wiki/Phantoms/images/MGH_head_1.zip Click here for .skp and stl files] to download files for the anthropomorthic head phantom published in Graedel et al MRM 2014.		[https://gate.nmr.mgh.harvard.edu/wiki/Phantoms/images/MGH_head_1.zip Click here for .skp and stl files] to download files for the anthropomorthic head phantom published in Graedel et al MRM 2014.
Line 13:		Line 13:
	'''3D printing tips'''		'''3D printing tips'''

	Be sure to see our info on the first page concerning sealing phantoms created by addive technology 3D printers. Normally these are porous and do not hold water; they need a sealing step.		*Be sure to see our info on the first page concerning sealing phantoms created by addive technology 3D printers. Normally these are porous and do not hold water; they need a sealing step.

	[[File:Phantom_figure_CT_MR.png\|400px\|thumb\|right\|]]		[[File:Phantom_figure_CT_MR.png\|400px\|thumb\|right\|]]

Wald at 19:19, 23 December 2013

2013-12-23T19:19:33Z

← Older revision		Revision as of 15:19, 23 December 2013
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	== MGH head 1 ==		== MGH head 1 ==
	[[File:giorgio_phant.jpg\|200px\|thumb\|right\|]]		[[File:giorgio_phant.jpg\|200px\|thumb\|right\|]]
	This is a head phantom based on a 1mm isotropic resolution MR dataset which was anatomically segmented and used as a numerical model for electromagnetics calculations as described in:		*This is a head phantom based on a 1mm isotropic resolution MR dataset which was anatomically segmented and used as a numerical model for electromagnetics calculations as described in:
	Makris et al.		Makris et al.

Wald at 19:19, 23 December 2013

2013-12-23T19:19:15Z

← Older revision		Revision as of 15:19, 23 December 2013
Line 2:		Line 2:
	== MGH head 1 ==		== MGH head 1 ==
	[[File:giorgio_phant.jpg\|200px\|thumb\|right\|]]		[[File:giorgio_phant.jpg\|200px\|thumb\|right\|]]
	This is a head phantom based on a 1mm isotropic resolution MR dataset which was anatomically segmented and used as a numerical model for electromagnetics calculations as described in:		This is a head phantom based on a 1mm isotropic resolution MR dataset which was anatomically segmented and used as a numerical model for electromagnetics calculations as described in:
	Makris et al.		Makris et al.