ライフサイエンスコーパス: nonenhanced

1 After single-energy nonenhanced 120-kVp CT images were acquired, contrast ma

2 -CT AKI as the primary outcome measure (8826 nonenhanced and 8826 IV contrast agent-enhanced CT studi

3 Hepatic contrast-to-noise ratios for nonenhanced and arterial, portal venous, and equilibrium

4 Nonenhanced and biphasic hepatic CT examinations were pe

5 (MR) examinations currently include multiple nonenhanced and contrast material-enhanced sequences.

6 65 years) with 47 adrenal nodules underwent nonenhanced and contrast-enhanced dual-energy multidetec

7 There was agreement in stage between the nonenhanced and contrast-enhanced examinations in 92 of

8 independent readers interpreted the virtual nonenhanced and DE weighted-average CT data for the pres

9 Nonenhanced and dynamic contrast material-enhanced compu

10 n infiltrative neoplasm is highly suspected, nonenhanced and enhanced magnetic resonance (MR) imaging

11 T2-weighted MR images, and MRCP images with nonenhanced and gadolinium-enhanced dynamic images.

12 ; age range, 11-87 years) with PSC underwent nonenhanced and gadolinium-enhanced MR imaging.

13 We assessed nonenhanced and gadolinium-enhanced T1-weighted, interme

14 Mean nonenhanced and maximum secretin-enhanced ADCs were high

15 minal computed tomography (CT) examinations (nonenhanced and nephrographic phases, 5-mm collimation,

16 g characteristic curve estimates for focused nonenhanced and nonfocused enhanced CT were 0.916 and 0.

17 chronic liver disease (n = 70) with routine nonenhanced and portal venous phase contrast agent-enhan

18 The combination of nonenhanced and portal venous phase CT was as effective

19 d undergone CT urography, which consisted of nonenhanced and pyelographic-phase dual-energy CT perfor

20 atory motion-related artifact (scores </= 2, nonenhanced and venous and/or late dynamic phases; >/= 4

21 II endoleaks were detected by using combined nonenhanced and venous phase acquisitions.

22 The nonenhanced and venous phase images were evaluated to de

23 dent readers' interpretations of the virtual nonenhanced and weighted-average venous CT data revealed

24 ured on the acquired nonenhanced, calculated nonenhanced, and 140-kVp contrast-enhanced nephrographic

25 hted contrast material-enhanced, T1-weighted nonenhanced, and fluid-attenuated inversion recovery (FL

26 %, 92.3%, and 97.9% specificity with focused nonenhanced appendiceal CT.

27 ing for assessment of flow dynamics by using nonenhanced approaches.

28 med by a different radiologist by using true nonenhanced, arterial phase, and venous phase data.

29 Mean CC-SC SI ratios on nonenhanced, arterial phase, venous phase, and delayed p

30 3D gradient-echo images obtained during the nonenhanced, arterial, and venous phases and high SI, si

31 ct score (1 [none] to 5 [nondiagnostic]) for nonenhanced, arterial, venous, and late dynamic phases.

32 Mean and median values of nonenhanced attenuation and material densities were comp

33 For each adrenal nodule, nonenhanced attenuation values were recorded; dual-energ

34 etrospective review of 300 randomly selected nonenhanced brain CT scans.

35 ion attenuation was measured on the acquired nonenhanced, calculated nonenhanced, and 140-kVp contras

36 For nonenhanced cardiac MRI, examination-related events were

37 phologically enhanced AChE(+) cells and more nonenhanced cells; the total number of AChE(+) neurons w

38 ion that can be easily measured on nongated, nonenhanced chest computed tomography images and be used

39 spectively included patients who underwent a nonenhanced chest CT examination because of clinical sus

40 proof-of-concept study indicates that TA of nonenhanced cine MR images allows for the diagnosis of s

41 ng features, enabling the diagnosis of MI on nonenhanced cine MR images by using LGE imaging as the s

42 First, to evaluate the relationship between nonenhanced computed tomographic (CT) findings and clini

43 are sensitivity and specificity of admission nonenhanced computed tomographic (CT) scans with those o

44 The development of nonenhanced computed tomography (CT) (single- or multi-d

45 lcoholic hepatic steatosis was defined using nonenhanced computed tomography and liver/spleen attenua

46 ry duct as the cause of the symptom complex, nonenhanced computed tomography is often the best initia

47 atherosclerosis, all participants underwent nonenhanced computed tomography of the aortic arch and c

48 y-based hospitals from 2003 to 2005 in which nonenhanced computed tomography scans and computed tomog

49 nuation values of each cyst were measured on nonenhanced, cortical phase, and nephrographic phase ima

50 etter diagnostic performance values than PET/nonenhanced CT (91%, 90.6%, 92.8%, and 88.3% versus 86.4

51 NAFLD was defined as hepatic steatosis at nonenhanced CT (liver minus spleen CT attenuation < 1 HU

52 associated with active endocarditis than PET/nonenhanced CT (P=0.006) or echocardiography (P<0.001).

53 Radiologic data included on a nonenhanced CT acquisition: pancreas, spleen, and liver

54 52 patients were examined with single-energy nonenhanced CT and dual-energy CT urography in the excre

55 d masses that are not seen sufficiently with nonenhanced CT are sampled at biopsy.

56 r to depict immediate complications, and (c) nonenhanced CT at 3, 6, and 12 months after repair.

57 7.9 years; 451 women, 378 men) who underwent nonenhanced CT colonography screening between April 2004

58 participants who underwent various types of nonenhanced CT examinations that included the heart: cor

59 d automated liver fat quantification tool at nonenhanced CT for establishing the prevalence of steato

60 Nonenhanced CT has a higher sensitivity for the detectio

61 the volume increased by more than 2% on the nonenhanced CT image, contrast-enhanced CT angiography w

62 Nonenhanced CT images and CT venograms were reviewed for

63 s obtained in six, the contrast-enhanced and nonenhanced CT images obtained in two, and the photograp

64 Magnetic resonance and nonenhanced CT images subsequently obtained in patients

65 nuating cysts on the acquired and calculated nonenhanced CT images were 6.5 HU +/- 5.8 (standard devi

66 Nonenhanced CT images were obtained.

67 Nonenhanced CT images were superior to nephrographic pha

68 a potential opportunistic role in abdominal nonenhanced CT scans performed for other clinical indica

69 ule was evaluated by using 3-mm-collimation, nonenhanced CT scans with both 140- and 80-kVp x-ray bea

70 oke and to retrospectively compare admission nonenhanced CT scans with CT angiographic source images

71 CT angiographic source images, compared with nonenhanced CT scans, are more sensitive in detection of

72 Follow-up nonenhanced CT scans, diffusion-weighted magnetic resona

73 lly segment the different lesion subtypes in nonenhanced CT scans.

74 volumetric analysis of aortic aneurysm with nonenhanced CT serves as an adequate screening test for

75 rely changes the tumor stage determined with nonenhanced CT through the adrenal glands and does not s

76 phy, or ROMICAT, II trial who underwent both nonenhanced CT to assess calcium score and contrast mate

77 Initial nonenhanced CT was followed by arterial phase and venous

78 Nonenhanced CT was performed in 21 patients with acute (

79 (18)F-FDG PET/CT, contrast-enhanced CT, and nonenhanced CT were performed before surgery or biopsy a

80 attenuation threshold of -10 HU or lower at nonenhanced CT, RCC would be misdiagnosed as AML in 11 (

81 Seventy-eight patients also underwent nonenhanced CT.

82 cases classified as possible IE with DC+PET/nonenhanced CT.

83 patients with nontraumatic SAH diagnosed at nonenhanced CT.

84 on-of-interest measurements were obtained at nonenhanced, dynamic enhanced, and delayed enhanced CT a

85 o, before TAVR, underwent CT that included a nonenhanced electrocardiography-gated cardiac scan betwe

86 mode O-PTIR spectra taken from powdered and nonenhanced fingerprints were of comparable quality to t

87 of chronic seizures are best evaluated with nonenhanced FLAIR or T2-weighted imaging for low-grade t

88 nhancing regions and hyperintense regions at nonenhanced fluid-attenuated inversion recovery imaging)

89 Preliminary data indicate that the proposed nonenhanced FSD MR angiographic technique is an improvem

90 with systemic sclerosis were imaged at 1.5-T nonenhanced FSD MR angiography followed by contrast-enha

91 eight, 92.5 kg) prospectively underwent both nonenhanced helical CT (5-mm collimation; pitch of 1.5)

92 Nonenhanced helical CT and excretory urographic images i

93 The extent of perinephric edema on nonenhanced helical CT images can be used to predict the

94 Nonenhanced helical CT is a highly accurate technique fo

95 The nonenhanced helical CT scans in 82 patients with a confi

96 ted acute appendicitis by using thin-section nonenhanced helical CT.

97 Acquired nonenhanced versus calculated nonenhanced image attenuation, as well as enhancement va

98 With use of subtraction maps, nonenhanced images (double inversion recovery [DIR], flu

99 nced images was significantly higher than on nonenhanced images (P <.05).

100 Material-specific images include virtual nonenhanced images and iodine-specific images (iodine ma

101 ns were compared with normal white matter on nonenhanced images and judged hyperintense.

102 mmercial software was used to create virtual nonenhanced images by suppressing the iodine signal from

103 logists, in consensus, evaluated the virtual nonenhanced images for the presence of stones.

104 Virtual nonenhanced images generated at pyelographic-phase dual-

105 HCC was hypoattenuating on nonenhanced images in 34, heterogeneously hyperattenuati

106 Calculated nonenhanced images were generated by using spectral-base

107 portal venous phase images, six were seen on nonenhanced images, and six were seen on arterial phase

108 s) were retrospectively detected on only the nonenhanced images, corresponding to 1.9% (four of 207)

109 s significantly higher (P <.05) than that on nonenhanced images.

110 viable tumor, which appeared hyperechoic, on nonenhanced images.

111 e attenuation on the acquired and calculated nonenhanced images.

112 morphology, and number; signal intensity on nonenhanced images; enhancement pattern on serial gadoli

113 nosis of HCC compared with SPIO-enhanced and nonenhanced imaging (P <.01).

114 has the potential to serve as a noninvasive, nonenhanced imaging method for liver fibrosis diagnosis

115 -decomposition images (which include virtual nonenhanced, iodine, perfused lung blood volume, lung ve

116 Animals underwent nonenhanced, iohexol-enhanced (600 mg of iodine per kilo

117 trast-enhanced lesion as well as rCBV of the nonenhanced lesion (rCBV(NEL)) were measured.

118 Seventy-five consecutive children underwent nonenhanced limited CT for suspected appendicitis.

119 ending radiologists in the interpretation of nonenhanced limited CT scans in children suspected of ha

120 While nonenhanced magnetic resonance (MR) angiographic methods

121 The purpose was to investigate nonenhanced magnetic resonance (MR) angiography with ste

122 ose To evaluate the diagnostic accuracies of nonenhanced magnetic resonance (MR) imaging and MR arthr

123 At 1.5 T, all evaluated nonenhanced MR angiographic methods demonstrated satisfa

124 ascular imaging, the established methods for nonenhanced MR angiographic techniques, such as time of

125 nalysis revealed that for the two reviewers, nonenhanced MR angiography had sensitivities of 89.7% (4

126 QISS nonenhanced MR angiography offers an alternative to curr

127 y of stenosis assessments performed with the nonenhanced MR angiography sequence was evaluated relati

128 The QISS nonenhanced MR angiography technique was evaluated in a

129 The diagnostic performance of nonenhanced MR angiography was found to be nearly equiva

130 Twelve nonenhanced MR images and six indirect and six direct MR

131 (mean accuracy, 0.76) was more accurate than nonenhanced MR imaging (mean accuracy, 0.64) (P <.04), a

132 using dynamic gadolinium-enhanced instead of nonenhanced MR imaging and with conspicuity equal to or

133 that were freshly frozen were examined with nonenhanced MR imaging and with MR arthrography after in

134 Nonenhanced MR imaging demonstrates high diagnostic perf

135 adoterate meglumine (plus a final additional nonenhanced MR imaging examination) were evaluated.

136 rthrography appears to be more accurate than nonenhanced MR imaging for diagnosis of SLAP tears, wher

137 r, whereas both indirect MR arthrography and nonenhanced MR imaging had 83% accuracy.

138 etection, whereas direct MR arthrography and nonenhanced MR imaging had accuracies of 67% and 75%, re

139 71%, but less specific, 60% versus 80%, than nonenhanced MR imaging in depicting recurrent labral tea

140 ging performed significantly better than did nonenhanced MR imaging or US (P < .002) and demonstrated

141 ically proven osteoid osteomas who underwent nonenhanced MR imaging, dynamic gadolinium-enhanced MR i

142 are contrast medium-enhanced MR imaging with nonenhanced MR imaging, US, and CT.

143 etter demonstrated the sublabral recess than nonenhanced MR imaging.

144 Five swine underwent nonenhanced MR lymphangiography with a heavily T2-weight

145 Image quality was satisfactory for all nonenhanced MR sequences.

146 The diagnostic performance of nonenhanced multidetector CT and dual-energy material de

147 mproved diagnostic performance compared with nonenhanced multidetector CT attenuation (sensitivity of

148 denomas, reflecting an improved ability over nonenhanced multidetector CT for diagnosis of lipid-poor

149 Nonenhanced, nonenhanced plus SPIO-enhanced, and nonenha

150 tients underwent right lower quadrant US and nonenhanced, nonsedated abdominopelvic MR imaging examin

151 Areas under the ROC curve for the nonenhanced phase images (range, 0.874-0.889) were super

152 nhanced, nonenhanced plus SPIO-enhanced, and nonenhanced plus SPIO-enhanced plus gadolinium-enhanced

153 Nonenhanced, nonenhanced plus SPIO-enhanced, and nonenhanced plus SPI

154 .2 +/- 0.2, P: <.005) compared with those of nonenhanced prone images despite no significant differen

155 Virtual nonenhanced, pure 80-kVp, and weighted-average peak volt

156 The compatibility of nonenhanced Raman spectroscopy with chromatographic and

157 rechoic areas decreased in size, whereas the nonenhanced region remained unchanged.

158 or model obtained from contrast-enhanced and nonenhanced regions within the same tumor were compared

159 areas, and one gene was up-regulated in the nonenhanced regions.

160 The true nonenhanced scan was considered the reference standard.

161 Nonenhanced scans and angiographic source images obtaine

162 erating characteristic (ROC) curve analysis, nonenhanced scans and angiographic source images were co

163 ed presence and extent of hypoattenuation on nonenhanced scans and angiographic source images with Al

164 ients determined correlations of ASPECTS for nonenhanced scans and angiographic source images with AS

165 correlation between delineation of stroke on nonenhanced scans and on follow-up images evaluated with

166 -up images evaluated with ASPECTS (P < .001, nonenhanced scans vs angiographic source images).

167 Retrospectively, the total-body nonenhanced scans were interpreted at a three-dimensiona

168 ivity for detection of acute stroke was 48% (nonenhanced scans) and 70% (angiographic source images)

169 ssion that was missed in the readouts of the nonenhanced sequences, with use of either DIR- or FLAIR-

170 .74, were slightly higher than those for the nonenhanced sequences.

171 ing the persistence of both the enhanced and nonenhanced serotypes.

172 -weighted SE images with fat suppression and nonenhanced spoiled GRE images each showed lesions in 15

173 contrast increased with worsening quality of nonenhanced study, the highest being in intensive care u

174 reviewed MRCP images alone, MRCP images with nonenhanced T1 - and T2-weighted MR images, and MRCP ima

175 Use of nonenhanced T1- and less heavily T2-weighted images with

176 hanced dynamic MR images to MRCP images with nonenhanced T1- and T2-weighted images did not significa

177 teoid osteomas significantly better than the nonenhanced T1-weighted (P <.001) and T2-weighted (P <.0

178 Nonenhanced T1-weighted and fat-saturated T2-weighted im

179 on both sides and can be seen on transverse nonenhanced T1-weighted images as a fine line curving ar

180 by-voxel subtraction of intensity-normalized nonenhanced T1-weighted images from CE T1-weighted image

181 Cast appeared hyperintense on nonenhanced T1-weighted images.

182 ospectively document hyperintense lesions on nonenhanced T1-weighted magnetic resonance (MR) images i

183 ntate nucleus (DN) of the pediatric brain on nonenhanced T1-weighted magnetic resonance (MR) images.

184 ntra- and interobserver agreements that used nonenhanced thick CT images were very good (intraclass c

185 Results Median LSN scores from nonenhanced thick-section CT images in cirrhotic livers

186 Nonenhanced thin-section CT of the chest was performed (

187 Nonenhanced thin-section CT of the chest was performed.

188 On nonenhanced, thin-section CT scans, the nodules were sol

189 All patients underwent nonenhanced thoracic helical CT from the lung apices thr

190 of calculi on VNE images compared with true nonenhanced (TNE) images was determined, and interrater

191 he mean attenuation change in the cysts from nonenhanced to contrast-enhanced images was statisticall

192 stently superior image quality compared with nonenhanced TOF MR angiography.

193 The authors hypothesized that the nonenhanced true fast imaging with steady-state precessi

194 mprehensive thoracic aortic MR examinations, nonenhanced true FISP MR imaging alone was 100% accurate

195 while mesenchymal GBM showed lower levels of nonenhanced tumor (P < .01).

196 increases in Gd-DTPA uptake in the initially nonenhanced tumor region but not in the remaining brain

197 In the nonenhanced tumor region, contrast uptake increased sign

198 Acquired nonenhanced versus calculated nonenhanced image attenuat

199 ostprocessing software, resulting in virtual nonenhanced (VNE) images.