ライフサイエンスコーパス: chest CT

1 Of the 2633 chest CT scans that were evaluated, interstitial lung ab

2 examinations were chest radiography (n=431), chest CT (n=410), abdominal CT (n=214), and abdominal ul

3 A total of 3,446 chest CT examinations were performed, with 334 patients

4 than 200,000 adult members underwent 415,581 chest CT examinations.

5 After four cycles of chemotherapy, a chest CT showed ongoing response (Fig 2D).

6 studies that included a recommendation for a chest CT imaging.

7 queried for these patients to determine if a chest CT examination was obtained within 1 year of the i

8 es throughout the bilateral lung fields in a chest CT scan, and mixed ventilatory impairment in a spi

9 1 of 1057 [95% CI: 62.4%, 68.2%) underwent a chest CT examination within the year after the index che

10 All patients with COPD underwent additional chest CT.

11 4 focus per cell+/-0.04 in one patient after chest CT corresponded to a mean radiation dose of 6.3 mG

12 ung cancer were prospectively selected after chest CT.

13 were sampled at biopsy within 3 weeks after chest CT (January 1999 to September 2003) in 41 young pa

14 s, 43.1% had a single CXR, 42.0% had CXR and chest CT, 6.7% had CXR and abdominal CT (without chest C

15 Esophagography and chest CT showed polypoid, nonobstructing esophageal mass

16 liant retrospective review of mammograms and chest CT scans from 206 women obtained within 1 year of

17 hest x-ray + head and neck MRI (CXR/MRI) and chest CT + head and neck MRI (CHCT/MRI) with (18)F-FDG P

18 c carcinoma underwent whole-body FDG PET and chest CT.

19 d is the best laboratory screening test, and chest CT has become the most widespread imaging test.

20 ified from results of pulmonary angiography, chest CT, lower extremity Doppler ultrasound and venogra

21 For annual chest CT screening of 50-year-old females with no follow

22 n high-risk individuals who underwent annual chest CT screening for 5 years and to evaluate the histo

23 during diagnostic x-ray procedures, such as chest CT, leads to a clear increase in the level of radi

24 Coronary calcium was assessed by chest CT.

25 duction when clinically stable) confirmed by chest CT and two or more chest infections in the precedi

26 ng portable head CT scans (97%), followed by chest CT (88%), abdominal CT (78%), and pelvic CT (34%)

27 In many patients with lung cancer, chest CT that includes the neck base followed by US-guid

28 Twenty-five clinical chest CT studies were obtained with a standardized PE pr

29 he equations were applied to contemporaneous chest CT images obtained in patients with stage I lung c

30 ced CTPA superior over non-contrast_enhanced chest-CT in patients with suspected IPA.

31 Conventional chest CT has not proven to be of significant value.

32 ference, the previous available conventional chest CT scan was used.

33 examination and that met inclusion criteria, chest CT images were reviewed to determine if there was

34 tients with CF cystic fibrosis , a dedicated chest CT protocol can replace the two yearly follow-up c

35 dose savings to the breast during diagnostic chest CT.

36 sed 10 410 patients who underwent diagnostic chest CT for noncardiovascular indications.

37 ll as to compare doses delivered in low dose chest CT with chest X-ray doses.

38 of image compression technology in low-dose chest CT can be recommended.

39 rs reduced image noise on low-radiation-dose chest CT images, with some compromise in image sharpness

40 inal enlargement; for this purpose, enhanced chest CT scan was performed using a 64-rows scanner (Tos

41 (IRR, 0.78; 95% CI, .71-.86), and had fewer chest CT scans (IRR, 0.73; 95% CI, .60-.88).

42 e attention to normal D-dimer results, fewer chest CT scans and lung scans will be required, and impr

43 For chest CT examinations obtained within 1 year of the inde

44 For chest CT, there was 52.6% (9.1 vs 19.2 mGy) to 85.4% (2.

45 5914) and 0.05% (three of 5914, P < .01) for chest CT and 1.9% (219 of 11 291) and 0.1% (six of 11 29

46 NR at 100 kVp of 8% (15.3/14.2; P = .41) for chest CT and 13% (7.8/6.8; P = .40) for abdominopelvic C

47 easured in the descending thoracic aorta for chest CT and in the liver for abdominal CT.

48 was fixed at 0 degrees and 180 degrees ; for chest CT, a spiral trajectory with TCM was used.

49 dose reduction of 46.4% (3.7 vs 6.9 mGy) for chest CT and 38.2% (5.0 vs 8.1 mGy) for abdominal CT (P

50 dulation provides acceptable image noise for chest CT, with an 18% and 26% reduction in tube current-

51 Acceptable image quality can be obtained for chest CT images acquired at 40 mAs by using ASIR without

52 of this paper is to present our protocol for chest CT imaging in the youngest age group, together wit

53 inations that contained a recommendation for chest CT examination, and increasing patient age (P < .0

54 increased likelihood of a recommendation for chest CT examination.

55 A radiologist recommendation for chest CT to evaluate an abnormal finding on an outpatien

56 ion, the average relative dose reduction for chest CT was 39% (2.7/4.4 mGy), with a maximum reduction

57 eduction greater for CT angiography than for chest CT (P < .001).

58 5% CI: 0.2%, 2.7%) were lower than those for chest CT (2.8%; 95% CI: 1.5%, 5.4%) and abdominal CT (2.

59 ation indications were cancer and trauma for chest CT and abdominal pain, trauma, and cancer for abdo

60 projection resulted in higher TCM values for chest CT (P < .001) owing to the higher attenuation (P <

61 nding aorta diameter (ratio PA) derived from chest CT are commonly reported in clinical practice.

62 % had multiple CXRs without CT, and 2.6% had chest CT alone in the emergency department.

63 Breath-hold chest CT detected an additional 125 parenchymal lung nod

64 chniques and central review are essential if chest CT is to be used for staging in cooperative studie

65 tocols in the early stage of implementation (chest CT, 58.9%; abdominal CT, 65.2%) was lower than in

66 ening centers that have staff experienced in chest CT.

67 Follow-up included chest CT in 16 patients and surgical resection in nine.

68 lunt trauma and found to have PNM on initial chest CT scanning.

69 ggest that fetal irradiation during maternal chest CT can be reduced substantially with barium shield

70 ically suspected CAP underwent multidetector chest CT scan within 4 hours.

71 imuli were 80 single sections from 13 normal chest CT studies.

72 18 months after surgery, he had a normal chest CT scan and ventilation-perfusion scan and had gro

73 deviation]) follow-up, 7.1% (575 of 8057) of chest CT patients and 3.9% (546 of 13 888) of abdominal

74 On the basis of chest CT findings, bronchoscopy with bronchoalveolar lav

75 The annual frequency of chest CT imaging increased from 1.3 to 1.9% for all adul

76 The variability in interpretation of chest CT scans in patients with Wilms' tumor limits the

77 ng cancer who underwent at least one pair of chest CT examinations 25 or more days apart before treat

78 is of patient characteristics, percentage of chest CT scans obtained at follow-up, years of experienc

79 duction surgery suggests that performance of chest CT in candidates for lung volume reduction surgery

80 The annual rate of chest CT increased from 15.4 to 20.7 per 1,000 person-ye

81 We calculated rates of chest CT imaging, nodule identification, and receipt of

82 Reports of chest CT performed during 6 months were reviewed to find

83 , determined from Monte Carlo simulations of chest CT by using single-section scanners and previous t

84 lymphocytopenia and an extent of GGO >50% on chest CT were independent risk factors for nonpositive Q

85 e awareness of this potential "black box" on chest CT.

86 acities along the bronchovascular bundles on chest CT scan.

87 Right ventricular (RV) enlargement on chest CT has previously been shown to correlate with an

88 les are common, often incidental findings on chest CT scans.

89 aic air trapping or centrilobular nodules on chest CT.

90 corresponding abnormalities were present on chest CT images in 41.4% (286 of 691 [95% CI: 37.7%, 45.

91 hancement within the pancreatic tail seen on chest CT images.

92 4.8 million Americans underwent at least one chest CT scan and 1.57 million had a nodule identified,

93 d be undergoing chest-abdominal-pelvic CT or chest CT only were recruited.

94 st x-ray plus head and neck MRI (CXR/MRI) or chest CT plus head and neck MRI (CCT/MRI).

95 In 10 patients, chest CT images were obtained at full inspiration and ex

96 itial human experience with dose-reduced PCD chest CT demonstrated lower image noise compared with co

97 ide the design and optimization of pediatric chest CT protocols.

98 Given the high number of performed chest CT examinations, this contributes to a significant

99 Preoperative chest CT was performed in 148 patients (84 men, 64 women

100 High-resolution chest CT demonstrated bilateral, diffuse, interstitial i

101 Although routine chest CT findings increased stage of disease in some pat

102 ectors (Art Phantom Canberra) during routine chest CT examinations (64 MDCT TK LIGHT SPEED GE Medical

103 lyze the actual dose distribution in routine chest CT examination protocols using an antropomorphic p

104 DCT) of the chest in comparison with routine chest CT examinations as well as to compare doses delive

105 25 men, 28 women) underwent 16-detector row chest CT with z-axis modulation and noise indexes of 10.

106 ventricular enlargement on multidetector-row chest CT in acute pulmonary embolism (PE).

107 with acute PE confirmed by multidetector-row chest CT.

108 We evaluated several chest CT findings that may have predictive value.

109 eparate cohort of 29 LVRS candidates, spiral chest CT studies were performed both without and with sp

110 d same-day repeat routine inspiratory spiral chest CT studies were performed in 29 LVRS candidates (g

111 T, 65.2%) was lower than in the later stage (chest CT, 88%; abdominal CT, 82%) (P < .001).

112 romatic dual-energy images and with standard chest CT images that were used as controls.

113 reduced reference tube current at subsequent chest CT.

114 The most common abnormal findings on the chest CT scan were pulmonary nodules (n = 14), followed

115 ing history might well be advised to undergo chest CT scanning in an aggressive search for occult lun

116 ggested that one out of 250 women undergoing chest CT will show a malignant incidental breast lesion.

117 tched patients without TSC who had undergone chest CT were evaluated.

118 igarette smoking and must not have undergone chest CT during the previous 3 years.

119 d, 3327 patients with blunt trauma underwent chest CT.

120 e range, 3 months to 19 years) who underwent chest CT during a 20-month period were evaluated for che

121 median 40.5 years, SD 14.02), who underwent chest CT examination by means of a 16-slice scanner.

122 icial femoral and popliteal veins; follow-up chest CT angiogram shows no evidence of pulmonary emboli

123 ive patients who were referred for follow-up chest CT angiography underwent reduced-dose CT (hereafte

124 91 years; mean, 64 years) were examined with chest CT (multi-detector row scanner, four detector rows

125 .85 mGy with whole-body CT and 5.16 mGy with chest CT.

126 rasound showing deep vein thrombosis or with chest CT showing pulmonary embolism.

127 t CT, 6.7% had CXR and abdominal CT (without chest CT), 5.5% had multiple CXRs without CT, and 2.6% h