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

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

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

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

29 3D gradient-echo images obtained during the nonenhanced, arterial, and venous phases and high SI, si

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

49 52 patients were examined with single-energy nonenhanced CT and dual-energy CT urography in the excre

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

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

52 Nonenhanced CT has a higher sensitivity for the detectio

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

54 Nonenhanced CT images and CT venograms were reviewed for

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

56 Magnetic resonance and nonenhanced CT images subsequently obtained in patients

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

58 Nonenhanced CT images were obtained.

59 Nonenhanced CT images were superior to nephrographic pha

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

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

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

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

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

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

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

67 Initial nonenhanced CT was followed by arterial phase and venous

68 Nonenhanced CT was performed in 21 patients with acute (

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

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

71 Seventy-eight patients also underwent nonenhanced CT.

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

73 patients with nontraumatic SAH diagnosed at nonenhanced CT.

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

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

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

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

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

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

80 Nonenhanced helical CT and excretory urographic images i

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

82 Nonenhanced helical CT is a highly accurate technique fo

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

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

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

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

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

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

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

90 Virtual nonenhanced images generated at pyelographic-phase dual-

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

92 Calculated nonenhanced images were generated by using spectral-base

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

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

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

96 e attenuation on the acquired and calculated nonenhanced images.

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

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

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

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

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

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

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

104 While nonenhanced magnetic resonance (MR) angiographic methods

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

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

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

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

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

110 QISS nonenhanced MR angiography offers an alternative to curr

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

112 The QISS nonenhanced MR angiography technique was evaluated in a

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

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

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

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

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

118 Nonenhanced MR imaging demonstrates high diagnostic perf

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

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

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

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

123 71%, but less specific, 60% versus 80%, than nonenhanced MR imaging in depicting recurrent labral tea

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

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

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

127 etter demonstrated the sublabral recess than nonenhanced MR imaging.

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

129 Image quality was satisfactory for all nonenhanced MR sequences.

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

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

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

133 Nonenhanced, nonenhanced plus SPIO-enhanced, and nonenha

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

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

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

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

138 .2 +/- 0.2, P: <.005) compared with those of nonenhanced prone images despite no significant differen

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

140 The compatibility of nonenhanced Raman spectroscopy with chromatographic and

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

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

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

144 The true nonenhanced scan was considered the reference standard.

145 Nonenhanced scans and angiographic source images obtaine

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

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

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

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

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

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

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

153 .74, were slightly higher than those for the nonenhanced sequences.

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

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

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

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

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

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

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

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

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

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

164 Cast appeared hyperintense on nonenhanced T1-weighted images.

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

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

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

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

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

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

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

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

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

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

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

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

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

178 In the nonenhanced tumor region, contrast uptake increased sign

179 Acquired nonenhanced versus calculated nonenhanced image attenuat

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