ライフサイエンスコーパス: phantom

1 ve realistic Hounsfield units in the patient phantom.

2 the use of the ACR mammography accreditation phantom.

3 igation of a multi-branched vascular network phantom.

4 of the abdomen and thigh with a calibration phantom.

5 Manufacturers Association 2007 image-quality phantom.

6 ated with the mammographic accreditation ACR phantom.

7 t of detection was assessed in a B16F10 cell phantom.

8 of the systems were estimated by using a CT phantom.

9 on combinations at fixed exposure for either phantom.

10 smaller exposure reduction than in the 30-cm phantom.

11 sing an edge pattern and a thin-line optical phantom.

12 branch vessels in a cryogel abdominal aortic phantom.

13 struction was also assessed using a Jaszczak phantom.

14 i-detector row CT scanner with a calibration phantom.

15 robubble concentration in a tissue mimicking phantom.

16 ietary algorithm was assessed by using a hip phantom.

17 ecause this study only evaluated images of a phantom.

18 anteroposterior vessels at 3 T in a vascular phantom.

19 lication of SSPiM OCTA signal in an in vitro phantom.

20 pression and cells in a 3D engineered tissue phantom.

21 eart wall insert of an anthropomorphic torso phantom.

22 by utilizing a boneless chicken breast as a phantom.

23 rovided the most accurate results in a large phantom.

24 L4 vertebral body with use of a calibration phantom.

25 s (TLD) placed inside a CIRS anthropomorphic phantom.

26 rved between the sphere and the renal cortex phantoms.

27 stortion values and distributions in virtual phantoms.

28 2.0 to assess the dose using new voxel-based phantoms.

29 sed technique was validated by using agarose phantoms.

30 ell as new cases using realistic voxel-based phantoms.

31 sceptometry has been demonstrated with liver phantoms.

32 ues and with basic geometric anthropomorphic phantoms.

33 er than the doses derived from old geometric phantoms.

34 image uniformity and noise by using uniform phantoms.

35 th OLINDA/EXM software using adult reference phantoms.

36 ing thin capillary and water-filled Jaszczak phantoms.

37 , 16.6, and 10.8 for the 30-, 35-, and 45-cm phantoms.

38 distribution volume, using tissue-simulating phantoms.

39 NDA/EXM 1.2 for the standard male and female phantoms.

40 agents and calcium phosphate were imaged in phantoms.

41 nto 58 extended cardiac-torso (XCAT) patient phantoms.

42 ion of anthropomorphic voxel-based pregnancy phantoms.

43 standard acrylamide phantoms vs macroporous phantoms (10kPa), improving the correlation to the burst

44 For the largest phantom (122.9 mL), the volumes of interest had to be en

45 By using a moving heart phantom, 18 data sets obtained from three coronary arter

46 A 2-compartment kidney phantom (70% cortical and 30% medullary compartment), a

47 sites filled and imaged the CTN oncology PET phantom according to detailed instructions.

48 esected human brain cancer and from a silica phantom acquired by a 1310 nm swept-source OCT (SS-OCT)

49 ime was apparent in the system above a total phantom activity of 3.3 GBq.

50 Phantom-adjusted Agatston scores for baseline and follow

51 TF-SSS and MC-SSS were 3% at maximum in the phantom and 4% in the patient study.

52 en used these data to evaluate the classical phantom and affine network theories of elasticity.

53 Uniform phantom and American College of Radiology-approved phant

54 ed against sonomicrometry in a dynamic heart phantom and among each other in 136 patients included pr

55 guided endovascular interventions by using a phantom and an in vivo swine model.

56 1) (with the greatest reduction in the 40-cm phantom and at lower exposures) and improved lesion CNR

57 probe to map the biomechanical properties in phantom and human cadaver carotid arteries.

58 Brain phantom and human scans have shown agreement in SUVs and

59 it is feasible to acquire PCSI spectra in a phantom and in humans and that PCSI provides an efficien

60 l demonstration is conducted in a calibrated phantom and in vivo in the brain of two healthy voluntee

61 Both phantom and in-vivo data demonstrated that localization

62 The proposed method was tested on simulated, phantom and patient data.

63 o the abdomen phantom, linear correlation of phantom and patient Hounsfield units was confirmed (r =

64 ithm (termed Q.Clear) was investigated using phantom and patient scans to optimize the reconstruction

65 In this study, phantom and patient scans were analyzed visually and qua

66 Phantom and patients were scanned in a PET/CT scanner.

67 sment of left ventricular (LV) function in a phantom and patients.

68 within the oral cavity microenvironment in a phantom and pre-clinical study.

69 ncidence counting rate from the (18)F-filled phantom and the (22)Na point source on all 3 systems.

70 ging system was tested with tissue-mimicking phantoms and an ex vivo chicken liver through 2D/3D imag

71 formed to compare MR imaging measurements in phantoms and animal models.

72 os (SBR) in vitro, murine xenografts, tissue phantoms and clinically.

73 (23)Na sequence was optimized and tested on phantoms and healthy volunteers.

74 the performance of this endoscope in tissue phantoms and in an in vivo model of ovarian cancer.

75 ity of this method is demonstrated in tissue phantoms and in initial experiments in vivo.

76 ted measurements over hours and days both in phantoms and in vivo.

77 ity to small-molecule dyes was determined in phantoms and in vivo; precision was assessed in vivo usi

78 Performance was evaluated with phantoms and low-dose bone, dynamic kidney, and cardiac

79 igher total organ doses for all investigated phantoms and protocols (P < .001).

80 s placed into 30-, 35-, and 45-cm-wide water phantoms and scanned with a dual-source CT scanner in bo

81 SPECT/CT imaging, a set of kidney dosimetry phantoms and their spherical counterparts was designed a

82 ted emission spectrum (0.014-0.041 mug/ml in phantoms), and (III) optical-property corrected PpIX est

83 and dead cells was next evaluated using MRI phantoms, and in vivo using both immune-competent and im

84 Here, we further test this approach in phantoms, and we present proof-of-concept data in models

85 Thirdly, a series of static cold phantoms are created to represent various liquid/solid i

86 ted with realistic voxelwise anthropomorphic phantoms are higher than the doses derived from old geom

87 Fabricated tissue phantoms are instrumental in optical in-vitro investigat

88 thod was first tested on a three-compartment phantom as proof-of-concept.

89 ise-equivalent count rate from a mouse-sized phantom at 3.7 MBq was 11.1 kcps and peaked at 20.8 kcps

90 imaged within a modified 32-cm CT dose index phantom at 80, 100, 120, and 140 kVp at CT.

91 of gadopentetate dimeglumine in blood serum phantoms at 1.5 T, 3 T, and 7 T.

92 Tinnitus, a phantom auditory percept, is encoded by pathological cha

93 This phantom-based study was exempt from institutional review

94 ation liver lesions in a semianthropomorphic phantom by using either a discrete circuit (DC) detector

95 ic iodine-based contrast material in a colon phantom by using the characteristic k edge of gadolinium

96 e four 6-mm rods in the ACR CT accreditation phantom can be lost.

97 The ACR phantom can be routinely used to evaluate image quality

98 We demonstrate our method on bead phantoms, cells in collagen gels, nematode larvae and em

99 Increasing the tissue phantoms' cellular density resulted in decreased dissolv

100 oncentration were well correlated with known phantom concentrations (R(2) = 1.00, P < .001) over a br

101 The phantom consisted of 2 types of hip prostheses in a solu

102 ere SPIO compositions was determined from 32 phantoms constructed with agarose gel and in eight conce

103 Materials and Methods A large elliptical phantom containing iodine (2, 5, and 15 mg/mL), simulate

104 ation of gold and iodine concentrations in a phantom containing mixtures of the contrast agents.

105 We scanned phantoms containing either an iodine contrast agent or g

106 ructed images and linear correction based on phantom data acquisitions.

107 Applying the procedure to phantom data and electron tomograms of cellular samples

108 Phantom data demonstrated that most PVC methods were str

109 The combined and collated phantom data describe a global profile of quantitative p

110 er variability over this large collection of phantom data gives, for the first time, estimates of rec

111 The IDEAL fitting in phantom data with superimposed noise provided smaller co

112 age quantification was investigated with the phantom data.

113 past 5 y has generated a rich, well-curated phantom dataset from which PET/CT make-and-model and rec

114 the CTN has collected 406 well-characterized phantom datasets from 237 scanners at 170 imaging sites

115 derations and numerical results in simulated phantom datasets.

116 f voxel-based, realistic human computational phantoms developed by the RADAR committee of the Society

117 image quality indicators for the CATPHAN 600 phantom; - dosimetric indicators of exposure (DLP i CTDI

118 Phantom employs the principle of multi-objective optimiz

119 Purpose To develop, in a phantom environment, a method to obtain multidetector co

120 For each modality, equivalent phantom examinations were performed without the isolatio

121 e image quality metrics were compared in the phantom experiment by using multiple linear regression a

122 Results The phantom experiment showed comparable image quality betwe

123 Three phantom experiments and 2 datasets of metastatic bone (1

124 This has been demonstrated quantitatively in phantom experiments as well as in patient imaging, for w

125 When compared with standard PET images, the phantom experiments showed a bias reduction of 14% in ac

126 Phantom experiments showed good agreement with standard

127 Phantom experiments were performed to determine the maxi

128 Performance was evaluated using simulations, phantom experiments, and clinical repeatability studies.

129 In phantom experiments, SWI and computed tomography were us

130 n a nearly 50-fold increase in cavitation in phantom experiments.

131 ma need to be informed of the possibility of phantom eye syndrome (PES).

132 and phantoms filled with (18)F, as well as a phantom filled with either (99m)Tc or (177)Lu, we evalua

133 Using (22)Na point sources and phantoms filled with (18)F, as well as a phantom filled

134 functional magnetic resonance imaging (MRI) phantom for sodium multi quantum (MQ) spectroscopy.

135 work can realize realistic and customizable phantoms for diagnostic and therapeutic radiology, inclu

136 material into computational anthropomorphic phantoms for estimation of organ dose at computed tomogr

137 y 3D printed CH structures, from soft tissue phantoms for surgical training and simulations to mechan

138 y, which is a phenomenon that we refer to as phantom fullness, may be useful in lowering energy intak

139 After the phantoms had been printed, SPECT/CT acquisitions of 3 ra

140 Implants in 30kPa macroporous phantoms had the best correlation with in vivo burst rel

141 would reduce pain, the BMI training with the phantom hand intensifies the pain.

142 ng designed to dissociate the prosthetic and phantom hands actually reduces pain.

143 al image quality measurements were made from phantom, human, and animal studies.

144 With the Jaszczak phantom, image quality increased overall when a reconstr

145 (19) F MRI phantom images provide sufficient contrast at micromolar

146 Furthermore, phantom images reveal analogous linear pH behavior.

147 Phantom images were evaluated for image uniformity and n

148 Phantom imaging experiments revealed that the in-plane X

149 Phantom imaging showed that features as small as 0.7 mm

150 Phantom improves the performance of gene set based metho

151 s were performed by using a tissue-mimicking phantom in multiple oxygenation conditions (n = 6) to co

152 manufacturing individualized anthropomorphic phantoms in many clinical applications in nuclear medici

153 ablished which could be carried out with the phantom, including: depth of penetration, dead zone, dis

154 sites were requested to submit a variety of phantoms, including uniform and American College of Radi

155 lgorithm was tested and validated on virtual phantoms incorporating known degrees and distributions o

156 mance of our capsule, we imaged fluorescence phantoms incorporating principal tissue fluorophores (fl

157 05 mg Fe/g liver phantom) to 5 mg Fe/g liver phantom iron overload (100X overdose).

158 The phantom itself contains uniform regions suitable for sca

159 cation module to monitor saliva glucose in a phantom jaw imitating the structure of the human oral ca

160 College of Radiology (ACR) CT accreditation phantom LCR section at volume CT dose indexes of 8, 12,

161 The cause of pain in a phantom limb after partial or complete deafferentation i

162 Amputees who wish to rid themselves of a phantom limb must weaken the neural representation of th

163 Whether we wish to remove a phantom limb or assimilate a synthetic one, we will bene

164 nd amputation is considered harmful, causing phantom limb pain.

165 results may have important implications for phantom-limb pain and complex regional pain syndrome.

166 rection procedure was applied to the abdomen phantom, linear correlation of phantom and patient Houns

167 es where the fly turned and the tongue hit a phantom location consistent with the fly's earlier traje

168 proposed imaging technique was validated in phantom measurements and then used for cardiac T1 mappin

169 However, at equal noise level, phantom measurements showed that contrast recovery coeff

170 Phantom measurements were performed to assess the detect

171 Phantom measurements were performed using the National E

172 Phantom measurements yielded good correlation between ph

173 corrected for partial-volume effect based on phantom measurements.

174 s work has demonstrated feasibility in solid phantoms, measurements in blood have proved significantl

175 omic force and confocal microscopy, we image phantom microstructures with nanoscale resolution, and a

176 n handling cytosolic metals in larvae of the phantom midge (Chaoborus) collected from five mining-imp

177 The CIRS Phantom model 040GSE was used.

178 An in vitro phantom model demonstrates that particulate matter in su

179 usions in cm-sized agarose gels used here as phantom models of microtumors.

180 erican College of Radiology CT accreditation phantom (module 2, low contrast) were performed for mult

181 of 100 prints resulted in three-dimensional phantoms of 1 cm thickness.

182 For this purpose, 3-dimensional (3D)-printed phantoms of different geometries were manufactured, diff

183 o develop a method to create anthropomorphic phantoms of individual patients with high precision of a

184 ve the dose with the classic anthropomorphic phantoms of pregnant women, then into OLINDA/EXM 2.0 to

185 culated with new voxel-based anthropomorphic phantoms of the pregnant woman.

186 able, commercially available anthropomorphic phantoms of variable sizes and shapes.

187 dy aimed to create acrylamide-based hydrogel phantoms of varying porosity and stiffness, which we hyp

188 surements for imaging through a 15 mm tissue phantom, our method shows a two fold improvement in spat

189 more pronounced at a pH of 6.5 using tissue phantoms (p<0.05).

190 aptive plasticity theory, according to which phantom pain arises from remapping of cortically neighbo

191 The remainder were Stress Test Originated Phantom Perception (STOPP) subjects.

192 m and American College of Radiology-approved phantoms, PET/CT images, and examples of clinical images

193 ug release was found to be dependent on both phantom porosity and stiffness.

194 ge noise was evaluated for a range of radial phantom positions, iteration numbers, and postreconstruc

195 ues derived from several voxel computational phantoms previously developed at Helmholtz Zentrum Munch

196 easured by computed tomography, and liver-to-phantom ratio (LPR) was calculated.

197 n resistome-a phenomenon we have termed the 'phantom resistome'.

198 e]) exposure reduction for the 30- and 40-cm phantoms, respectively (adjusted P < .001 and .04 respec

199 muSv/MBq in reference human male and female phantoms, respectively), and the effective dose equivale

200 m and American College of Radiology-approved phantom results between scanner manufacturers were simil

201 The simulation and phantom results revealed that entropy images constructed

202 Contrary to the phantom results, the effect was notable already at a low

203 Analysis of the geometric phantoms revealed an exponential correlation between tem

204 Direct microscopic observation of these phantoms, revealed a significant (p = 0.0024) correspond

205 We created a "phantom road" using an array of speakers to apply traffi

206 We initially tested this device on a phantom sample that simulated positive tumour margins.

207 an automatically reconstructed image of the phantom sample.

208 For the phantom scans, cold artifacts were visible on the PET im

209 Here we utilise phantom sensations and ultra high-field neuroimaging to

210 tionship between cortical reorganization and phantom sensations or pain either with this measurement

211 was also examined to assess the influence of phantom shape and size on the calibration constants.

212 Results The first abdomen phantom showed a detailed reproduction of the patient an

213 Measurements in tissue-simulating phantoms showed that (I) spectral fitting enhanced PpIX

214 placed into a 36-cm-wide torso-shaped water phantom simulating the abdomen of a medium-sized patient

215 energetic energy (in kiloelectron volts) and phantom size by using a paired t test.

216 esence of a lesion (P = .029) independent of phantom size or exposure level.

217 (IR) with changes in radiation exposure and phantom size.

218 Tinnitus is a phantom sound commonly thought of to be produced by the

219 s, but it is unclear how these relate to the phantom sound itself, as opposed to predisposing factors

220 siform cells suggests that a neural code for phantom sounds emerges in this brainstem location and li

221 Tinnitus, the perception of phantom sounds, is thought to arise from increased neura

222 populations requires intermediate habitats ("phantom" stepping stones).

223 interconnectivity decreased with increasing phantom stiffness and better mimicked the microstructure

224 uence was optimized by using simulations and phantom studies and in three healthy volunteers.

225 Phantom studies demonstrate feasibility of this platform

226 Phantom studies have revealed a significant reduction in

227 Methods: Phantom studies over an activity range of 0.5-4.2 GBq we

228 Phantom studies over an activity range of 0.5-4.2 GBq we

229 Material/Phantom studies were performed with two angiographic sys

230 guided by parameters selected in preliminary phantom studies).

231 On phantom studies, patterns of sO2 measured directly corre

232 L reconstructions when compared with OSEM in phantom studies.

233 L reconstructions when compared with OSEM in phantom studies.

234 the two-sided t distribution for each of the phantom study imaging modalities.

235 pe PC collimator was used in an experimental phantom study to assess and compare contrast recovery co

236 The proposed method was validated by a phantom study using a typodont with prepared teeth.

237 were used in the clinical evaluation, and a phantom study using an anatomic brain phantom was conduc

238 In the phantom study, a threshold of 40% was found to overestim

239 In the phantom study, for each ejection fraction value, volume

240 In the phantom study, PSF modeling significantly improved activ

241 In a phantom study, we estimated a linear model fitting the C

242 adiation exposure was compared by means of a phantom study.

243 priate optimization and validation, hydrogel phantoms such as the one investigated here could be used

244 computed tomographic (CT) quantitation in a phantom system comparing fast kilovolt peak-switching, d

245 antified in the soleus muscle by using three phantoms that contained 10-, 20-, and 30-mmol/L NaCl sol

246 In an in vitro tumour mimicking phantom, the level and distance of Ad-gold-PEG transport

247 With the ratlike phantom, the peak noise-equivalent counting rate was 14

248 n vitro, the measured exceeded actual tissue/phantom thickness by 13% to 20%.

249 Tissue/phantom thickness was measured in vitro with varying con

250 This study utilized a simulated brain phantom to investigate the errors introduced through the

251 ing highly dynamic objects were evaluated by phantoms to characterize system performance.

252 ns from normal iron dose (0.05 mg Fe/g liver phantom) to 5 mg Fe/g liver phantom iron overload (100X

253 e have developed a novel statistical method, Phantom, to investigate gene set heterogeneity.

254 Next, a 300 mum-thick phantom tumor model was used to validate the probe's abi

255 mor from the basic region in a gelatin-based phantom under OCT imaging.

256 aracterization of tissues and fabrication of phantoms used for diagnostic and therapeutic purposes ov

257 evaluated in 10 healthy controls and a brain phantom using a 3 T MRI/MRS scanner.

258 Phantom visceral artery cannulation was easier with stan

259 -volume effects were observed for decreasing phantom volumes (percentage difference of up to 9.8% for

260 de of quantized vorticity, which we term the phantom vortex.

261 and show that angular momentum is hidden in phantom vortices modes which so far seem to have evaded

262 from 31% to 43% when in standard acrylamide phantoms vs macroporous phantoms (10kPa), improving the

263 and a phantom study using an anatomic brain phantom was conducted.

264 atient, a patient-specific digital perfusion phantom was constructed to simulate the same protocol at

265 Quantitation stability of a (68)Ge flood phantom was demonstrated within 0.34%.

266 n basis material composition relative to the phantom was estimated in the L2 vertebra.

267 Materials and Methods A custom-made colon phantom was filled with nonionic iodine-based contrast m

268 Lesion detection in the 40-cm phantom was inferior at smaller exposure reduction than

269 OT COV in a stable phantom was less than 2.8% across all wavelengths over 3

270 ies were performed: an (18)F-filled Jaszczak phantom was measured, and the impact of including PSF mo

271 erican College of Radiology CT accreditation phantom was scanned by using a dual-source multidetector

272 ical Manufacturers Association image-quality phantom was scanned on a time-of-flight PET/CT scanner a

273 Materials and Methods An anthropomorphic phantom was scanned with 192-section CT without and with

274 The colon phantom was scanned with a preclinical spectral photon-c

275 red with a (68)Ge line source in the scatter phantom was stable within the range of 40.4%-40.6%.

276 The produced phantom was subject to further CT scan in comparison wit

277 trical Manufacturers Association NU2 quality phantom was used for the experiments.

278 An image-quality phantom was used to measure contrast recovery, residual

279 A gated dynamic cardiac phantom was used.

280 ssue sodium concentration (TSC), an external phantom was used.

281 solution (rod visibility in a micro-Jaszczak phantom) was 0.85 mm.

282 recovery coefficients for the image-quality phantom were 53.7, 64.0, 73.1, 82.7, 86.8, and 90.7 for

283 ameter of supra-slice objects in the Catphan phantom were taken into consideration.Both iterative alg

284 ation curves from an ex vivo experiment in a phantom were used to design CM protocols for CT angiogra

285 ctive doses for the standard male and female phantoms were 0.013 +/- 0.004 and 0.014 +/- 0.004 mSv/MB

286 efficients (0-10 cm(-1)) in hemoglobin-based phantoms were approximately 2% and 6%, respectively.

287 Simulations and measurements of phantoms were executed to acquire backscattered radiofre

288 aped and spherically shaped uniform-activity phantoms were observed.

289 e greatest impact on signal repeatability in phantoms were rotational position and user experience, b

290 Measurements in stable phantoms were used to independently assess the impact of

291 ound to be dependent on the stiffness of the phantoms, while drug release was found to be dependent o

292 Following validation on a phantom with a known path of electric current and induce

293 A proprietary phantom with a range of low-contrast cylindrical objects

294 rlo simulation was run using a modified XCAT phantom with additional and edited cerebrospinal fluid (

295 es of 3-T MR imaging were measured in a head phantom with no grid, a conventional grid, and a PTFOS g

296 A set of 4 single-compartment kidney phantoms with filling volumes between 8 and 123 mL was d

297 nits were investigated by printing geometric phantoms with gray scales ranging from 0% (white) to 100

298 Materials and Methods An anthropomorphic phantom without or with a 5-cm-thick fat-mimicking ring

299 ication (VIDA) and 4D Extended Cardiac Torso Phantom (XCAT) were extended to provide radiation safety

300 Proof of concept studies of tissue phantoms yielded a mean error of 9.2% on hemoglobin conc