Abstract:
:This study is to investigate the computed tomography (CT) image quality of the low- tube-voltage protocol with low contrast agent dose.CT portography was performed in 118 cirrhosis patients with body mass index (BMI) less than 25 kg/m under 2 protocols: Protocol A, tube voltage of 90 kVp/395 mAs and contrast agent dosage of 1.2 mL/kg, and, Protocol B, tube voltage of 120 kVp/200 mAs and contrast agent dosage of 1.5 mL/kg.The number of patients in each protocol was 59. The CT value noise, signal-to-noise ratio (SNR), and contrast-to-noise ratio (CNR) in portal veins was comparatively analyzed between the 2 protocols. The subjective image quality was further assessed on 5-point scales. Radiation dose was also recorded and statistical analysis was performed.The CT value, CNR, and SNR of the images were higher at 90 kVp than those at 120 kVp (P < .05). There was no significant difference in image noise between the 2 protocols (P > .05). The CT dose index volume, dose-length product, and effective dose at 90 kVp were 18.2%, 16.0%, and 16.0% less than that at 120 kVp, respectively. There was no difference in image quality score between the 2 protocols (P > .05). The average amount of contrast agent was decreased by 17.8% when the 90 kVp protocol was used.CT portography at 90 kVp combined with low-dosage contrast agent leads to a significant reduction in radiation dose and improved SNR and CNR, without deterioration of image quality.
journal_name
Medicine (Baltimore)journal_title
Medicineauthors
Liu S,Sheng H,Shi H,Li W,Fan J,He J,Sun Hdoi
10.1097/MD.0000000000013141subject
Has Abstractpub_date
2018-11-01 00:00:00pages
e13141issue
48eissn
0025-7974issn
1536-5964pii
00005792-201811300-00010journal_volume
97pub_type
杂志文章,随机对照试验相关文献
MEDICINE文献大全abstract::The aim of this study was to investigate the long-term results of computed tomography (CT)-guided percutaneous radiofrequency thermocoagulation (PRT) for glossopharyngeal neuralgia (GPN).A retrospective review of medical records for patients with GPN who were treated with CT-guided PRT between 2003 and 2014 was perfor...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000005530
更新日期:2016-11-01 00:00:00
abstract::Intra-abdominal infection (IAI) after hepatectomy is an important morbidity. Identification of risk factors that could be avoided in the perioperative period may reduce the prevalence of IAI after hepatectomy for hepatocelluar carcinoma (HCC).Between January 1995 and December 2009, all patients with HCC who underwent ...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000006795
更新日期:2017-04-01 00:00:00
abstract::In 23 adult women having uncomplicated recurrent urinary tract infections treated with 10 days of appropriate antibiotic for each infection, the following findings were noted. 1. The attack rate was 0.17 infections per month. 2. 94% of infections has associated symptoms. 3. 73% of symptomatic episodes had an associate...
journal_title:Medicine
pub_type: 杂志文章
doi:
更新日期:1977-01-01 00:00:00
abstract::There is still debate on whether high uric acid increases bone mineral density (BMD) against osteoporotic fracture or bone resorption caused by gout inflammation. This study aimed to evaluate whether gout offers a protective effect on bone health or not. We conducted a nationwide population-based retrospective cohort ...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000004669
更新日期:2016-08-01 00:00:00
abstract::Acute pancreatitis in pregnancy (APIP) is a rare but dangerous complication. APIP has common symptoms with acute abdomen. Assessment of an acute abdomen is more complicated during pregnancy because the gravid uterus could mask most of symptomatic signs. It has been a challenge to diagnose APIP by physical examination ...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000011189
更新日期:2018-06-01 00:00:00
abstract:INTRODUCTION:Interventions aimed at addressing subthreshold depression (StD) are important to prevent the onset of major depressive disorder. Our video playback application (SPSRS) is designed to reduce depressive symptoms by presenting positive words in videos, shedding new light on the treatment of StD. However, no r...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000018934
更新日期:2020-01-01 00:00:00
abstract:BACKGROUND:Danshen injection (DSI) is a traditional Chinese medicine preparation extracted from Danshen (Salvia miltiorrhiza), which has the functions of promoting blood circulation and removing blood stasis. Heart failure (HF) is a complex cardiovascular disease, always leading to frequent onset and hospitalization, d...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000015636
更新日期:2019-05-01 00:00:00
abstract::Two clinical models have been described to predict the probability of pulmonary embolism: the Canadian (or Wells) model, and the Geneva model. A third model has been developed recently at our institution (the Pisa model). We compared the performance of the 3 models in 215 consecutive patients with suspected pulmonary ...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/01.md.0000158793.32512.37
更新日期:2005-03-01 00:00:00
abstract::Cough is frequently self-limiting, but may persist longer in certain individuals. Most of previous studies on the epidemiology of chronic cough have only measured period prevalence, and thus have afforded limited information on the burden and natural course. We aimed to investigate the epidemiology of chronic cough by...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000006486
更新日期:2017-03-01 00:00:00
abstract::We report a case of leukemic arthritis (LA) of monocytic differentiation, which presented with spondyloarthritis-like symptoms and a positive human leukocyte antigen-B27, and discuss its potential mechanisms.The patient was admitted because of pain in her right knee and lower back for 18 months. Magnetic resonance ima...
journal_title:Medicine
pub_type: 杂志文章,评审
doi:10.1097/MD.0000000000009919
更新日期:2018-02-01 00:00:00
abstract:BACKGROUND:Premature ovarian insufficiency (POI) is the loss of function of the ovaries before age 40. Chinese herbal medicine (CHM) has been treating POI for long time. Therefore, we conduct this study to assess the efficacy and safety of CHM for POI. METHODS:Seven databases will be searched from inception to Decembe...
journal_title:Medicine
pub_type: 杂志文章,meta分析
doi:10.1097/MD.0000000000019371
更新日期:2020-03-01 00:00:00
abstract::To assess whether the pattern of presentation and the outcome of monoclonal gammopathy of undetermined significance (MGUS) have changed over the last 3 decades, we evaluated 1400 patients, divided into 3 groups: group I (1975-1987), group II (1988-1997), and group III (1998-2007). We observed a significant increase in...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0b013e3181e763be
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:Plate fixation and intramedullary nail/Knowles pin fixation methods are commonly used to treat displaced midshaft clavicle fractures. However, the differences between these 2 methods are unclear. OBJECTIVE:This meta-analysis aimed to compare plate fixation and intramedullary nail/Knowles pin fixation for di...
journal_title:Medicine
pub_type: 杂志文章,meta分析
doi:10.1097/MD.0000000000022284
更新日期:2020-09-25 00:00:00
abstract:BACKGROUND:Acute mountain sickness (AMS) is the effect when people accessing high altitude in a short period of time. As a cyclooxygenase (COX) inhibitor, ibuprofen could alleviate the symptoms of AMS. However, whether it can prevent AMS or not is still controversial. It is necessary to perform a meta-analysis to evalu...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000023233
更新日期:2020-11-13 00:00:00
abstract::Inflammation is increasingly reported to be associated with the prognosis of patients with cancers. And the prognostic role of neutrophil-to-lymphocyte ratio (NLR) in patients with prostate cancer (PCa) remains inconsistent. Therefore, we conducted this systematic review and meta-analysis to obtain a more reliable ass...
journal_title:Medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MD.0000000000002544
更新日期:2016-01-01 00:00:00
abstract::Budd-Chiari syndrome (BCS) may not be as uncommon as was once believed. Our study has substantiated the existence of 2 major clinical forms. The acute syndrome is invariably associated with extensive blockage of the major hepatic veins, resulting in congestive liver cell necrosis. In a small, but significant, number o...
journal_title:Medicine
pub_type: 杂志文章,评审
doi:10.1097/00005792-199401000-00003
更新日期:1994-01-01 00:00:00
abstract::Recent studies have revealed a link between estradiol (E2) and glucose homeostasis. We aimed to assess the association between cord blood hormone levels and the risk of gestational diabetes mellitus (GDM).A total of 204 pregnant women with GDM and 204 pregnant women without GDM (control) were included in the study. Ma...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000006962
更新日期:2017-05-01 00:00:00
abstract:BACKGROUND:Intrahepatic cholestasis of pregnancy (ICP) is a specific pregnancy-related disorder without standard medical therapies. Ursodeoxycholic acid (UDCA) is the most used medicine, but the efficacy and safety of UDCA remain uncertain. Several meta-analyses had been made to assess the effects of UDCA in ICP. Howev...
journal_title:Medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MD.0000000000004949
更新日期:2016-10-01 00:00:00
abstract:RATIONALE:Facial cosmetic surgery sometimes causes complications involving surrounding tissues. In particular, parotid damage may cause fibrous tissue formation, ductal stenosis, and obstruct salivary flow. Affected patients usually complain of symptoms such as pain and swelling. PATIENT CONCERNS:The authors report 2 ...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000015015
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:Dapagliflozin, a novel inhibitor of sodium-glucose cotransporter-2 (SGLT-2), lowers blood glucose level by specifically inhibiting the activity of SGLT-2. Previous studies showed efficacy and safety of dapagliflozin combined with other antihyperglycemic agents in type 2 diabetes (T2DM), however, there are fe...
journal_title:Medicine
pub_type: 杂志文章,meta分析
doi:10.1097/MD.0000000000016575
更新日期:2019-07-01 00:00:00
abstract::We prospectively identified cases of pneumococcal pneumonia and used stringent criteria to stratify them into bacteremic and nonbacteremic cases. Although patients were distributed among racial groups in proportion to all patients seen at this medical center, the proportion of African-Americans with bacteremic disease...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/00005792-200007000-00002
更新日期:2000-07-01 00:00:00
abstract::Vedolizumab is an anti-inflammatory monoclonal antibody that exclusively targets the α4β7 integrin. We aimed to systematically review the efficacy and safety of vedolizumab for patients with inflammatory bowel diseases (IBDs). PubMed, EMBASE, and the Cochrane Library were searched up to May 2014. Randomized controlled...
journal_title:Medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MD.0000000000000326
更新日期:2014-12-01 00:00:00
abstract:RATIONALE:Diffuse large B-cell lymphoma (DLBCL) and extranodal marginal zone B-cell lymphoma of mucosa-associated lymphoid tissue (MALT) belong to Non-Hodgkin's lymphoma (NHL). DLBCL rarely involves the orbit. MALT lymphomas, which account for 8.0% of NHLs, rarely involve parotid gland, trachea and bronchus. PATIENT C...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000010845
更新日期:2018-05-01 00:00:00
abstract::The contributions of micro RNAs (miRNAs) to rheumatoid arthritis (RA) are beginning to be uncovered during the last decade. Many studies in efforts to use miRNAs as biomarkers in disease diagnosis, prognosis, and treatment are ongoing.We conducted a systematic literature review to reveal the role of miRNAs in the path...
journal_title:Medicine
pub_type: 杂志文章,评审
doi:10.1097/MD.0000000000001326
更新日期:2015-08-01 00:00:00
abstract::Blood glucose control in patients with diabetes mellitus (DM) is reportedly influenced by the seasons, with hemoglobin A1c (HbA1c) levels decreasing in the summer or warm season and increasing in the winter or cold season. In addition, several studies have shown that sepsis is also associated with the seasons. Althoug...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000000148
更新日期:2014-11-01 00:00:00
abstract::Previous series presented the timing between embolization and surgery in a wide range on the basis of their experience rather than supportive data. And comparative studies were limited to small samples. In addition, there is no study publishing the timing by considering both safety and efficacy of embolization. The ai...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000010912
更新日期:2018-06-01 00:00:00
abstract::Clinical, roentgenographic and pathologic findings in patients with chronic eosinophilic pneumonia, including 19 additional cases, have been reviewed and summarized. Most patients present with subacute respiratory and constitutional symptoms and have failed to respond to therapy for presumptive pneumonia. A previous h...
journal_title:Medicine
pub_type: 杂志文章,评审
doi:10.1097/00005792-198805000-00002
更新日期:1988-05-01 00:00:00
abstract::We have compared the effect of therapy with immunosuppression alone to immunosuppression plus plasma exchange on the clinical course and rate of disappearance of antibody in 17 patients with anti-glomerular basement membrane (anti-GBM) antibody-induced renal disease. Patients receiving immunosuppression (n = 9) and th...
journal_title:Medicine
pub_type: 临床试验,杂志文章
doi:10.1097/00005792-198507000-00003
更新日期:1985-07-01 00:00:00
abstract::The global incidence of pyogenic liver abscess (PLA) is increasing, but related reports of malignant tumor-related PLA are infrequent. Potential malignant tumors of PLA have been reported, but there is no relevant predictive model for this subsection of patients.To explore the risk factors of malignant tumor-related P...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000019282
更新日期:2020-02-01 00:00:00
abstract:RATIONALE:Albeit it is rare, the authors report a stage 3 Kummell disease case. It is diagnosed by dynamic thoracic magnetic resonance imaging (MRI). Because there is no established strategy on stage 3 Kummell disease, we performed percutaneous kyphoplasty at first, but unfortunately made a revision surgery to remove t...
journal_title:Medicine
pub_type: 杂志文章,评审
doi:10.1097/MD.0000000000008895
更新日期:2017-11-01 00:00:00