Imaging in Medicine最新文献_第6页

A rare case of chronic calcificpancreatitis with intrahepatic andsplenic pseudocysts 慢性钙化性胰腺炎合并肝内及脾假性囊肿一例

Imaging in Medicine Pub Date : 2017-01-01 DOI: 10.14303/IMAGING-MEDICINE.1000066

Sanjib K. Das, IpsitaAcharya, JayashreeMohanty, Sasmita Swain

引用次数: 1

Imaging in Medicine Pub Date : 2017-01-01 DOI: 10.14303/Imaging-Medicine.1000053

S. deSilva

引用次数: 0

Correlation between diffusion tensor imaging and histological brain injury in ventilated preterm lambs 通气早产儿弥散张量成像与脑组织损伤的相关性研究

Imaging in Medicine Pub Date : 2017-01-01 DOI: 10.14303/IMAGING-MEDICINE.1000061

Dhafer M Alahmari, Samantha K. Barton, R. Galinsky, I. Nitsos, Anzari Atik, Michael Farrell, JamesTodd Pearson Graeme R Polglase

{"title":"Correlation between diffusion tensor imaging and histological brain injury in ventilated preterm lambs","authors":"Dhafer M Alahmari, Samantha K. Barton, R. Galinsky, I. Nitsos, Anzari Atik, Michael Farrell, JamesTodd Pearson Graeme R Polglase","doi":"10.14303/IMAGING-MEDICINE.1000061","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000061","url":null,"abstract":"Objective: Inflammation and mechanical ventilation contribute additively to white matter injury in the preterm infant. We examined whether in vivo diffusion tensor imaging (DTI) indices correlate with immunohistochemical analyses of brain inflammation and injury caused by injurious ventilation at birth, in the presence or absence of intrauterine inflammation. Methods: Twin-bearing ewes received an ultrasound guided injection of lipopolysaccharide (LPS; n=11) or saline (n=12) 7 days prior to delivery at ~125 days gestation. Immediately after delivery, lambs received either an injurious (LPS+INJ; n=5 and INJ; n=6) or protective (LPS+PROT; n=6 and PROT; n=5) ventilation strategy for 90 min, after which DTI was assessed. Following imaging, neuronal density (NeuN antibody) in the thalamus (Th) and myelin density (myelin basic protein, MBP) in the internal capsule (IC) and periventricular white matter (PVWM) were assessed. Results: LPS exposure significantly increased axial diffusivity (P=0.01) and decreased myelin density in the IC (P=0.02) compared to saline groups. Moreover, there was a strong inverse correlation between fractional anisotropy values and myelin density in PVWM (P=0.01), and a trend in the IC (P=0.07) in all lambs. Injurious ventilation tended to reduce radial and mean diffusivity in the Th (P=0.07 and P=0.08). Conclusion: DTI was able to detect microstructural changes associated with a reduction in myelination due to inflammation in the short term. However, DTI indices were not sensitive enough to consistently detect the microstructural changes induced by injurious ventilation immediately after birth.","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"38 1","pages":"67-76"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74388208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Evaluating patients with pulmonarythromboembolism: a retrospective studyon the utilization of serum D-dimer assayand CT angiography 评价肺血栓栓塞患者:血清d -二聚体测定和CT血管造影应用的回顾性研究

Imaging in Medicine Pub Date : 2017-01-01 DOI: 10.14303/IMAGING-MEDICINE.1000064

A. Tobias, Anjali Agrawal ArjunKalyanpur

{"title":"Evaluating patients with pulmonarythromboembolism: a retrospective studyon the utilization of serum D-dimer assayand CT angiography","authors":"A. Tobias, Anjali Agrawal ArjunKalyanpur","doi":"10.14303/IMAGING-MEDICINE.1000064","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000064","url":null,"abstract":"Background and objective: Serum D-dimer assay is an inexpensive laboratory test with a high negative predictive value, obviating the need for computed tomographic pulmonary angiography (CTPA) in patients with low clinical probability of thromboembolic disease. It has been recommended that CTPA may be performed only in patients with positive D-dimer assays and clinical suspicion of PTE (pulmonary thromboembolism), to curb unnecessary imaging and health care costs. We wanted to reassess the validity of this recommendation by looking into the D-dimer results in patients with positive PTE on CTPA. Methods: All patient records with positive PTE diagnosis on CTPA and having relevant laboratory data during one calendar year (January 01 to December 31, 2009) were selected. Serum D-dimer values of >500 ng/ml was considered abnormal. The D-dimer results among the patients who had the test performed were tabulated based on age and sex along with those without D-dimer assay in the same groups and correlated with their percentage distribution. Results: Out of a total of 98 positive PTE cases on CTPA, only 26 patients (26.5%) had a serum D-dimer assay done prior to CTPA. Of these, 20 (76.9%) had elevated values and 6 cases (23.1%) had a negative test. Negative D-dimer results varied with patient age, being highest in the 21-40 years age group. Conclusion: Overall, there seems to be more preferred use of CTPA and underutilization of serum D-dimer assay in clinical practice for suspected PTE. Secondly, negative D-dimer assay should not be used to triage patients with a high clinical index of suspicion for PTE.","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"21 1","pages":"81-84"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82702493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

How (not) to misdiagnose focal renal lesions: lessons learned? 如何(不)误诊局灶性肾脏病变:经验教训?

Imaging in Medicine Pub Date : 2017-01-01 DOI: 10.14303/IMAGING-MEDICINE.1000080

L. Leão, T. Mussi, F. Yamauchi, R. Baroni

引用次数: 0

MRI in pre-operative NAC vascular map 术前NAC血管图MRI

Imaging in Medicine Pub Date : 2017-01-01 DOI: 10.14303/IMAGING-MEDICINE.1000086

C. Francisco, S. João, B. Rita, M. Carlos, Leal de Faria Joao Abecasis Nuno

{"title":"MRI in pre-operative NAC vascular map","authors":"C. Francisco, S. João, B. Rita, M. Carlos, Leal de Faria Joao Abecasis Nuno","doi":"10.14303/IMAGING-MEDICINE.1000086","DOIUrl":"https://doi.org/10.14303/IMAGING-MEDICINE.1000086","url":null,"abstract":"Objective: NAC’s blood supply may convey essential information for surgery planning. This study’s aim was to evaluate breast blood supply using MRI and to compare it between oncological and non-oncological subjects. The risk factors for NAC necrosis in nipple sparing mastectomy were analyzed. Methods: Breast MRI exams in one month at a single institution were evaluated. The considered inclusion criteria focused on patients with: ductal carcinoma in situ, invasive carcinoma (IC) or high-risk screening (HRS) without previous breast surgery. Subtraction reconstructions from dynamic acquisitions obtained at 60 s post-contrast administration were used. Results: 166 breasts were evaluated (12 pre op DCIS; 42 HRS; 112 pre op IC) - 71% of the NAC’s had a dominant blood supply. Tumors were localized in the upper outer quadrant (UOQ) in 46% of cases. In the NAC vascularization analysis, there was a tendency for a higher number of vessels vascularizing the NAC in the IC group (p=0.056) and there was a difference in the quadrant analysis mainly at the UOQ that had a dominant blood supply in 18% of the IC group and only 2% in the HRS (p=0.048). 16 patients performed NSM, three had NAC necrosis. The number of vessels supplying the NAC was the only factor with correlation with this outcome (p=0.01). There was not a single NAC with a dominant blood vessel from the lower outer quadrant (LOQ). Conclusion: Using MRI to pre-operatively evaluate breast blood supply is feasible without adding extra MRI time or contrast. 71% had dominant supply to the NAC, so every effort should be made to preserve it. The LOQ appears to be an optimal site for skin incisions. There is an asymmetry between cancer and HRS breasts mainly at the NAC’s level with neovascularization of that area. Patients with a single vessel supplying the NAC are at improved risk for necrosis.","PeriodicalId":13333,"journal":{"name":"Imaging in Medicine","volume":"19 1","pages":"215-222"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75004359","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sonographic appearance of ewings sarcoma of femur: a case report 股骨尤因肉瘤的超声表现1例

Imaging in Medicine Pub Date : 2017-01-01 DOI: 10.14303/IMAGING-MEDICINE.1000046

N. Jain, R. Galhotra, Kavita Saggar Simran Sidhu

引用次数: 0

Xanthomas in familial hypercholesterolemia

Imaging in Medicine Pub Date : 2017-01-01 DOI: 10.14303/IMAGING-MEDICINE.1000076

L. Jhuria, Sanjay Kumar

引用次数: 1

Cardiac amyloidosis revealed by bone scintigraphy 骨显像显示的心脏淀粉样变性

Imaging in Medicine Pub Date : 2017-01-01 DOI: 10.14303/IMAGING-MEDICINE.1000088

Yassir Benameura, M. Nadif, I. Ghfir, L. Oukerraj, H. Guerrouj, M. Cherti, N. B. Aouad

引用次数: 0

Depressed skull fracture following a baseball bat strike to the head 棒球棒击中头部后凹陷性颅骨骨折

Imaging in Medicine Pub Date : 2017-01-01 DOI: 10.14303/IMAGING-MEDICINE.1000052

L. Phillips

引用次数: 0