Abstract:
:To compare the radiation dose and image quality of retrospective electrocardiogram (ECG)-gated cardiac computed tomography (CT) between a 100-kVp protocol, hybrid iterative reconstruction (HIR), and display preset optimization and the 120-kVp protocol.We prospectively enrolled 100 patients with tachycardia or atrial fibrillation scanned retrospective ECG-gated cardiac CT. We randomly assigned 50 patients to the 120-kVp protocol and 50 patients to the 100-kVp protocol. We compared effective doses (EDs) between the two protocols. The 120-kVp images were post-processed using filtered back projection (FBP). The 100-kVp images were post-processed using FBP (100-kVp protocol) and HIR (i-100-kVp protocol). We compared attenuation of the ascending aorta, signal-to-noise ratio (SNR), and image noise between the 120-kVp, 100-kVp, and i-100-kVp protocols. We performed qualitative image analysis for the 120-kVp and i-100-kVp protocols.ED of the 100-kVp protocol (4.4 ± 0.4 mSv) was 76% lower than that of the 120-kVp protocol (18.4 ± 0.6 mSv). Attenuations of the 100-kVp (549.1 ± 73.8 HU) and i-100-kVp (550.5 ± 73.7 HU) protocols were higher than that of the120-kVp protocol (437.3 ± 55.7 HU). Image noise of the 100-kVp (53.6 ± 18.5 HU) and i-100-kVp (30.9 ± 8.6 HU) protocols were higher than that of the120-kVp protocol (23.8 ± 5.7 HU). There was no significant difference in SNR and the result of qualitative image analysis between the 120-kVp and i-100-kVp protocols.The 100-kVp protocol with HIR reduced the 76% radiation dose while preserving the image quality compared with the conventional 120-kVp protocol on retrospective ECG-gated cardiac CT.
journal_name
Medicine (Baltimore)journal_title
Medicineauthors
Iyama Y,Nakaura T,Yokoyama K,Kidoh M,Yamashita Ydoi
10.1097/MD.0000000000005459subject
Has Abstractpub_date
2016-11-01 00:00:00pages
e5459issue
46eissn
0025-7974issn
1536-5964pii
00005792-201611150-00071journal_volume
95pub_type
杂志文章,随机对照试验相关文献
MEDICINE文献大全abstract::To characterize the current frequency of HIV-1 coreceptor usage in China and assess the candidacy of CCR5 antagonists for treatment of HIV infections. In addition, we aimed to evaluate the potential of X4/DM virus transmission in recently infected men who have sex with men (MSM) individuals.Viral tropism testing was p...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000005017
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:This review aims to evaluate the effectiveness and safety of acupuncture treatment for reducing opioid consumption in patients with chronic pain. METHODS:We will search the following electronic databases from their inception to November 2019: MEDLINE, EMBASE, the Cochrane Central Register of Controlled Tria...
journal_title:Medicine
pub_type: 杂志文章,meta分析
doi:10.1097/MD.0000000000018237
更新日期:2019-12-01 00:00:00
abstract:OBJECTIVES:The primary objective of this study was to investigate whether dexmedetomidine could potentiate the analgesic efficacy of ropivacaine, when added to ropivacaine for wound infiltration in patients undergoing open gastrectomy. METHODS:Fifty patients scheduled for open gastrectomy were divided into 2 equal gro...
journal_title:Medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/MD.0000000000007950
更新日期:2017-09-01 00:00:00
abstract:RATIONALE:Subacute combined degeneration (SCD) is a disease caused by decreased vitamin B12 intake or metabolic disorders. It is more common in the elderly and rarely seen in children. Here, we report 2 pediatric cases of SCD in late-onset cobalamin C (CblC) deficiency. PATIENT CONCERNS:The patients complained of unst...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000017334
更新日期:2019-09-01 00:00:00
abstract:INTRODUCTION:Intramuscular hemangioma (IMH) is a rare congenital soft tissue tumor. Here, we report a case of IMH patient who had undergone several surgeries and other treatments that were all ineffective before he visited us. CLINICAL FINDINGS:This IMH patient was a 16-yearold male who was born with a tumor of unknow...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000005939
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Recently, many studies have been conducted to investigate the relationship between the A46G polymorphism in the β2-adrenergic receptor (ADRB2) gene and essential hypertension risk in the Chinese population. However, the results of previous studies were conflicting. OBJECTIVES:The present study aimed to inve...
journal_title:Medicine
pub_type: 杂志文章,meta分析
doi:10.1097/MD.0000000000023164
更新日期:2020-11-13 00:00:00
abstract::Acute lymphoblastic leukemia (ALL) is the most frequent pediatric malignancy. The chemotherapy for ALL is associated with a profound secondary immune deficiency.We evaluated the number and phenotype of natural killer (NK) cells at diagnosis, after the intensive chemotherapy and following the completion of the entire t...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000002369
更新日期:2015-12-01 00:00:00
abstract::To investigate whether the control of morning blood pressure (MBP) reflects the control of blood pressure (BP) in other periods (daytime, nighttime and 24-hour) and to assess whether morning BP displays a closer association with subclinical target organ damage (TOD) than the BP measured in other periods.One thousand o...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000019278
更新日期:2020-02-01 00:00:00
abstract::We reviewed the clinical manifestations of mesenteric vasculitis due to giant cell arteritis (GCA) and considered features of the mesenteric anatomy in relationship to disease expression. We compiled and reviewed a case series by systematic identification of patients previously reported in the English-language literat...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0b013e3181646118
更新日期:2008-01-01 00:00:00
abstract:RATIONALE:Woven coronary artery is an extremely unusual congenital anomaly with unknown etiology. Because of normal flow after anomalous segment, this anomaly is considered to be benign. PATIENT CONCERNS:A 51-year-old man was admitted to our hospital with exertional dyspnea that he had experienced for half a year. Wov...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000008302
更新日期:2017-11-01 00:00:00
abstract:RATIONALE:The relationship between antineutrophil cytoplasmic autoantibody (ANCA)-associated vasculitis (AAV) and ANCA-negative vasculitis has not been elucidated. PATIENT CONCERNS:A 64-year-old female with edema and proteinuria was admitted. A kidney biopsy indicated focal proliferative nephritis with crescents in 25...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000009128
更新日期:2017-12-01 00:00:00
abstract:RATIONALE:Priapism is a common urologic emergency, but high-flow penile priapism (HFP) caused by trauma is very rare. Therefore, HFP diagnosis and treatment are still not standardized. PATIENT CONCERNS:A 29-year-old man was admitted to the urology department of our hospital on August 01, 2019, due to "persistent penil...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000022618
更新日期:2020-10-09 00:00:00
abstract:RATIONALE:Multiorgan/system injury was observed in severely infected coronavirus disease 2019 (COVID-19) patients, in addition to viral pneumonia. Recognizing and correcting the key and immediate dysfunctions may reduce mortality. PATIENT CONCERNS:A 66-year-old previously healthy male patient was referred to the isola...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000023449
更新日期:2020-12-04 00:00:00
abstract:BACKGROUND:We aimed to study the feasibility of body surface projection in neuroendoscopic treatment of intracranial hemorrhage (ICH), and to evaluate the prognosis of muscle strength using diffusion tensor imaging (DTI) technique. METHODS:We utilized 3D-SLICER software and adopted hematoma body surface projection ori...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000015503
更新日期:2019-05-01 00:00:00
abstract:BACKGROUND:Placenta increta/percreta is an increasingly common and life-threatening obstetric complication. It poses a management challenge to clinicians. The present study aimed to evaluate efficacy and safety of preoperative placement of infrarenal abdominal aorta balloon catheter (IAABC) alone or combined with Bakri...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000008114
更新日期:2017-09-01 00:00:00
abstract:BACKGROUND:Benign prostatic hyperplasia (BPH) is a medical condition that affects the quality of life by causing lower urinary tract symptoms (LUTS) in 40% to 70% of men aged ≥60 years. Medication treatment is primarily recommended for patients with BPH if their symptom score based on the International Prostate Symptom...
journal_title:Medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/MD.0000000000019678
更新日期:2020-04-01 00:00:00
abstract::Treatment of hypertrophic scars arising as a result of thermal burns in children is still a big problem. The results of the treatment are not satisfactory for patients and parents, and new methods of treatment are still investigated.We present the use of one of the most modern carbon dioxide (CO2) lasers (Lumenis Enco...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000005168
更新日期:2016-10-01 00:00:00
abstract::Curative treatments for very early-stage hepatocellular carcinoma (HCC), defined as single HCC with a maximum diameter of <2 cm in patients with well-preserved liver function, consist of surgical resection or radiofrequency ablation (RFA). In this retrospective study, we compared the efficacy of both treatments in 154...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000016279
更新日期:2019-06-01 00:00:00
abstract:RATIONALE:Eclampsia, an obstetric emergency frequently seen in pregnant or puerperal women, is a risk factor for posterior reversible encephalopathy syndrome (PRES). Most cases of eclampsia occur postpartum. We report a woman with PRES associated with eclampsia 10 weeks post-delivery, the latest onset ever reported. P...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000015187
更新日期:2019-04-01 00:00:00
abstract::Serum albumin (SA) is associated with inflammation and thrombosis, which are involved in acute aortic dissection (AAD). Our aim was to investigate the effect of SA level on survival in patients with AAD.We analyzed 777 patients with AAD. The patients were divided into hypoalbuminemia and non-hypoalbuminemia groups acc...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000014486
更新日期:2019-02-01 00:00:00
abstract:BACKGROUND:Far-infrared irradiation (FIR) is used in the medical field to improve wound healing, hemodialysis with peripheral artery occlusive disease, and osteoarthritis but seldom used in ameliorating poor lower extremity circulation. The purpose of this study was to evaluate the effect of FIR on changes in foot skin...
journal_title:Medicine
pub_type: 杂志文章,随机对照试验
doi:10.1097/MD.0000000000023366
更新日期:2020-12-11 00:00:00
abstract:BACKGROUND:Osteoporosis is a common skeletal disorder in eldest people, especially in postmenopausal women. The osteoprotegerin (OPG) gene has been reported to be associated with the BMD and pathogenesis of osteoporosis. However, the results were inconsistent and inconclusive in previous studies. METHODS:A meta-analys...
journal_title:Medicine
pub_type: 杂志文章,meta分析
doi:10.1097/MD.0000000000013507
更新日期:2018-12-01 00:00:00
abstract:RATIONALE:Solitary fibrous tumor (SFT) is an unusual neoplasm, especially when it originates from the seminal vesicle. Herein, we describe a case of SFT that arises from the seminal vesicle. PATIENT CONCERNS:A 66-year-old man presented to our hospital complaining of a huge irregular tumor in his pelvis during a health...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000014660
更新日期:2019-03-01 00:00:00
abstract:BACKGROUND:Treatment for osteoporosis in the community in patients who were operated for hip fracture appears to be suboptimal at best. Evidence regarding treatment beyond the 1st year after surgery is scarce. We examined the association between discharge recommendations for treatment of osteoporosis in patients suffer...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000004141
更新日期:2016-07-01 00:00:00
abstract:BACKGROUND:Insomnia has become a universal subhealth disease, affecting more and more modern people's health and quality of life. At present, western medicine is only symptomatic treatment for insomnia. Bailemian Capsule (BLMC) is a proprietary Chinese medicine for treating insomnia. It has been widely used in China, b...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000014275
更新日期:2019-01-01 00:00:00
abstract:BACKGROUND:To perform a systematic review of the effect of time interval on 2-deoxy-2-[18F] fluoro-D-glucose (18F-FDG) uptake in normal organs. METHODS:PubMed, EMBASE, Ovid, and Cochrane databases were searched to identity all potential eligible literature. The study characteristics and relevant data were extracted an...
journal_title:Medicine
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MD.0000000000013122
更新日期:2018-11-01 00:00:00
abstract:INTRODUCTION:Periorbital metastasis of colorectal cancer is rare. Therefore, herein, we report a patient with rectal cancer who presented with periorbital metastasis without any systemic metastasis. PATIENT CONCERNS:The patient was a 57-year-old man who had a painless nodule on his left eyelid. DIAGNOSIS:The patient ...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000018479
更新日期:2020-01-01 00:00:00
abstract:RATIONALE:Breast cancer is one of the most common cancers in women, and it is the leading cause of cancer related deaths in Croatia. BRCA1 and BRCA2 gene mutations are the most common cause of hereditary breast cancer. PATIENT CONCERNS:In this report we describe a Croatian patient with no apparent family history of ca...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000008667
更新日期:2017-12-01 00:00:00
abstract:BACKGROUND:To investigate the efficacy and advantage of combining situ-morcellation with continuous-fill-mattress suture compared with conventional morcellation and suture in laparoscopic myomectomy. METHODS:One hundred sixteen patients who underwent laparoscopic myomectomy from March 2014 to October 2016. INTERVENTI...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000007672
更新日期:2017-08-01 00:00:00
abstract::The neutrophil-to-lymphocyte ratio (NLR) and the platelet-to-lymphocyte ratio (PLR) are not fully evaluated for the diagnosis of musculoskeletal tumors, especially spine tumors. The objective of our study was to assess the feasibility of NLR and PLR as indicators for pretreatment diagnosis of spine tumors.Patients who...
journal_title:Medicine
pub_type: 杂志文章
doi:10.1097/MD.0000000000014902
更新日期:2019-04-01 00:00:00