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Clinical Imaging

Menglin Chen, Haijie Zhang, Yixin Hu, Kai Liu, Yanjia Deng, Yuanmeng Yu, Yulan Wu, Anqi Qi, Yingjia Li, Ge Wen
PURPOSE: Our purpose was to report a case of adult pancreatoblastoma, and review the literature in order to assist clinicians in the management of the disease. MATERIALS AND METHODS: The demographic, clinical, and imaging findings of 41 patients with pathologically proven pancreatoblastoma from 1986 to 2017 identified in PubMed were reviewed. The key words used for searching PubMed were: "pancreatoblastoma", "pancreatic tumor", and "adult pancreatoblastoma...
May 4, 2018: Clinical Imaging
Regis Otaviano Franca Bezerra, Marcel Cerqueira Machado, Micaela Maciel Dos Santos Mota, Tamara Abou Ezzedine, Luiz Tenório de Brito Siqueira, Giovanni Guido Cerri
Non-ductal pancreatic neoplasm (NPN) represents a heterogeneous group of pancreatic masses, in which diagnosis and management remain challenging due to their overall rarity. Knowledge of their radiologic features is essential for differential diagnosis and to guide clinical decisions for optimal management. The purpose of this paper was to present radiological patterns of these rare pancreatic tumors, solid or predominantly solid, with emphasis in the differential diagnosis and surgical management.
May 4, 2018: Clinical Imaging
Jeong Won Lee, Ho Sung Lee, Ju Ock Na, Sang Mi Lee
OBJECTIVE: This study evaluated the relationship between adipose tissue volume and survival in patients with non-small cell lung cancer (NSCLC). METHODS: We retrospectively included 171 NSCLC patients who underwent staging 18 F-fluorodeoxyglucose (FDG) positron emission tomography/computed tomography (PET/CT) and subsequent curative surgical resection or definite chemoradiotherapy. Maximum standardized uptake value (SUV) of lung cancer normalized by lean body mass (SULmax) and volume and mean SUV of subcutaneous adipose tissue (SAT) and visceral adipose tissue (VAT) were derived from PET/CT images...
May 4, 2018: Clinical Imaging
Eun Jee Song, Yu-Mee Sohn, Mirinae Seo
PURPOSE: To investigate the most effective cutoff values for shear-wave elastography (SWE) for differentiating benign and malignant breast lesions and to evaluate the diagnostic performance of quantitative and qualitative SWE in combination with B-mode ultrasound (US). METHODS: 209 breast lesions from 200 patients were evaluated with B-mode US and SWE. Pathologic results determined by US-guided core needle biopsy or surgical excisions were used as a reference standard...
May 4, 2018: Clinical Imaging
Amir Ali Rahsepar, Jeremy D Collins, Bradley P Knight, KyungPyo Hong, James C Carr, Daniel Kim
A subcutaneous implantable cardioverter-defibrillator (S-ICD) is an alternative device for prevention of sudden cardiac death, without any leads within the heart. Patients implanted with any type of ICD may need catheter ablation of ventricular tachycardia (VT) to reduce the overall arrhythmia burden (e.g., recurrent monomorphic VT) and lower the incidence of painful shocks induced by the device. Late gadolinium enhancement (LGE) MRI is a useful pre-test for guiding VT ablation, because it can be used to map myocardial scar and produce better outcomes...
May 4, 2018: Clinical Imaging
Jae W Song, Sam Ojeda, Javier M Romero
Varicella zoster virus is a common viral infection with over 50% of patients over the age of 80 years infected with the virus. Following reactivation, some patients succumb to complications of VZV reactivation with neurologic and optic pathway pathology such as VZV vasculopathy resulting in transient ischemic attacks, strokes, aneurysms, as well as optic neuritis. We show that high resolution vessel wall magnetic resonance imaging can aid in the diagnosis of this condition with circumferential wall thickening and enhancement of the infected vessels...
May 3, 2018: Clinical Imaging
Ana Germano, Willian Schmitt, Pedro Almeida, Rui Mateus-Marques, Valeriano Leite
BACKGROUND: A higher prevalence of thyroid nodules/carcinoma in females is well-known from the literature. The reasons for this difference are not fully explained. We intended to assess gender variation in the referral for ultrasound-guided fine needle aspiration (FNA) of thyroid nodules, to study reasons for gender referral differences, and to assess differences in nodules characteristics between genders. METHODS: Included were 272 consecutive patients, with 290 nodules submitted to FNA...
May 3, 2018: Clinical Imaging
Srikanth R Boddu, Pierre Gobin, Cristiano Oliveira, Marc Dinkin, Athos Patsalides
PURPOSE: Role of contrast-enhanced magnetic resonance venography (CE-MRV) in the follow-up of venous sinus stenting (VSS) among the idiopathic intracranial hypertension (IIH) patients. MATERIALS AND METHODS: Prospective evaluation of VSS patients with CE-MRV, DRCV and DSA for follow-up of clinically suspected recurrent stenosis. CE-MRV was evaluated against DRCV and DSA. RESULTS: Ten patients with twelve episodes of recurrent symptoms. Sensitivity, specificity, PPV, NPV and accuracy of the CE-MRV for the detection of recurrent stenosis were: 100%, 33...
May 1, 2018: Clinical Imaging
Apurva A Bonde, Chenara Johnson, Benjamin Addicott, Antonio C Westphalen, Elena K Korngold, Fergus V Coakley
The radiological differential diagnosis for complex renal cysts seen at CT generally includes cystic malignancy or renal abscess. We have encountered five cases of complex-appearing renal cysts at CT where serial imaging and clinical outcome favored a diagnosis of a collapsed benign simple renal cyst. We present these cases to broaden the differential diagnosis for complex renal cysts seen at CT, highlighting the importance of careful correlation with prior imaging to assist in correct recognition of collapsed simple cysts and potentially allowing for conservative management or surveillance...
May 1, 2018: Clinical Imaging
Usha R Lalchandani, William J Weadock, Graham F Brady, Ashish P Wasnik
Gastrointestinal anisakiasis is an uncommon zoonotic parasitic infection caused by consumption of raw or undercooked seafood infected with nematodes of genus Anisakis. Given the non-specific clinical presentation of acute abdomen, nausea, and vomiting these patients are often subject to radiologic imaging. We present ultrasound and computed tomography imaging features in a case of gastric anisakiasis demonstrating characteristic features of diffuse gastric submucosal edema, perigastric stranding and trace ascites that helped to further elaborate the clinical history of uncooked fish consumption prompting timely endoscopic diagnosis and management...
May 1, 2018: Clinical Imaging
Gustavo Mendez, Bryan R Foster, Xin Li, Jackilen Shannon, Mark Garzotto, Christopher L Amling, Fergus V Coakley
OBJECTIVE: To evaluate the length of contact between dominant tumor foci and the prostatic capsule as a sign of extracapsular extension at endorectal multiparametric MR imaging. MATERIALS AND METHODS: We retrospectively identified 101 patients over a three-year interval who underwent endorectal multiparametric prostate MR imaging prior to radical prostatectomy for prostate cancer. Two readers identified the presence of dominant tumor focus (largest lesion with PI-RADS version 2 score of 4 or 5), and measured the length of tumor capsular contact and likelihood of extracapsular extension by standard criteria (1-5 Likert scale)...
April 25, 2018: Clinical Imaging
Aoife MacMahon, Steven B Orr, Lauren E Wessel, Kathleen N Meyers, Kara Fields, Shari T Jawetz, Roger J Bartolotta, Duretti Fufa
PURPOSE: To use a CT-based approach with 3D modeling to determine novel radiographic views of the scaphotrapezial (STl) and scaphotrapezoid (STd) joints. MATERIALS AND METHODS: Consecutive wrist CT scans excluding those with pathology of the distal radius, scaphoid, trapezium, or trapezoid of subjects between ages 18 and 60 years were retrospectively reviewed. Three-dimensional reconstructions of CT scans were created and best-fit planes of the STl and STd joints were generated...
April 24, 2018: Clinical Imaging
Lea Azour, Tausif Billah, Mary M Salvatore, Matthew D Cham, David S Mendelson, Corey D Eber, Adam H Jacobi
OBJECTIVE: To assess causative factors, associated imaging findings, and CT course of round atelectasis (RA). MATERIALS AND METHODS: We retrospectively reviewed CT reports for "round" or "rounded atelectasis" over a 5-year time frame. Patients with at least 2 CT scans a minimum of 6 months apart were included. Electronic medical records and clinical and imaging follow-up was reviewed for all cases. RESULTS: Study population included 50 individuals with mean age of 63 years, and 59 unique instances of RA...
April 23, 2018: Clinical Imaging
Mary Salvatore, Laurie Margolies, Alexandra Bertolini, Ayushi Singh, David Yankelevitz, Claudia Henschke
The benefits of early diagnosis and treatment of breast cancer are well established. Thoracic CT which is performed with increased frequency for lung cancer screening can diagnose breast cancer earlier then might be possible clinically. The imaged and radiation exposed breasts must be included in their entirety on images which are reviewed by the radiologist. Because of concerns about how altering the field of view might affect image quality, we advocate for inclusion of the entire breast on the soft tissue series, which can be viewed on mediastinal window settings and expose the patient to no additional radiation...
April 19, 2018: Clinical Imaging
Zhi-Cheng Li, Yu-Zhe Cai, Zhi-Gang Tang, Pan-Li Zuo, Rong-Bo Liu, Fang Liu
OBJECTIVE: To evaluate the effect of lipo-PGE1 on renal hypoxia in patients with DKD by BOLD-MRI. MATERIALS AND METHODS: All patients were divided into DKD group and CKD-without-diabetes group. All patients received intravenous 10 μg lipo-PGE1 once daily for 14 days. BOLD-MRI was performed before and after lipo-PGE1 administration to acquire renal CR2* and MR2* values. RESULTS: Renal MR2* value in DKD group after lipo-PGE1 treatment were significantly decreased compared with the baseline...
April 17, 2018: Clinical Imaging
Mirinae Seo, Yu-Mee Sohn
OBJECTIVES: The purpose of this study is to evaluate the additive value of shear wave elastography (SWE) for differentiating benign and metastatic axillary lymph nodes (LNs) in breast cancer. MATERIALS AND METHODS: The area under the receiver operating characteristic curve, sensitivity, and specificity of B-mode US, SWE, and combined modality were compared for 54 suspicious LNs. RESULTS: After combining information from SWE, sensitivity was significantly higher for combined modality than for B-mode US alone (94...
April 14, 2018: Clinical Imaging
Nicholas Voutsinas, Aalap Chokshi, Michael Chung, Matthew Cham, Gina LaRocca, Javier Sanz, Adam Jacobi
Aorto-atrial fistulas are a rare diagnosis with limited reports in the clinical literature. These findings are often characterized by echocardiography alone; however, the advent and increased availability and use of CT angiography to diagnose cardiac abnormalities provides improved anatomic visibility of potential defects. We are reporting a case of a 76-year-old male with decompensated heart failure secondary to a fistula between the aorta and left atrium after remote history of bioprosthetic aortic valve replacement...
April 14, 2018: Clinical Imaging
Emetullah Cindil, Suna Ozhan Oktar, Koray Akkan, Halit Nahit Sendur, Rıdvan Mercan, Abdurrahman Tufan, Mehmet Akif Ozturk
OBJECTIVE: Our study aimed to assess the pathological sonoelastographic changes in the major salivary glands and to demonstrate the diagnostic effectiveness of Sonoelastography as an additional method to US in Sjögren's syndrome. METHODS: Fifty eight patients with primary Sjögren's syndrome (pSS) were selected according to the American-European Consensus Group Classification criteria. Twenty five healthy volunteers involved in this study. All patients were evaluated with B-mode and elastography by using Hitachi EUB 7500 digital ultrasound equipment...
April 14, 2018: Clinical Imaging
Ashish P Wasnik, Mathew S Davenport, Ravi K Kaza, William J Weadock, Aaron Udager, Nahid Keshavarzi, Bin Nan, Katherine E Maturen
OBJECTIVE: To determine the diagnostic accuracy of multi-detector CT (MDCT) for differentiating gallbladder cancer from acute and xanthogranulomatous cholecystitis using previously described imaging features. METHODS: In this IRB approved HIPAA-compliant retrospective cohort study, contrast-enhanced MDCT of histologically confirmed acute cholecystitis (n = 17), xanthogranulomatous cholecystitis (n = 25), and gallbladder cancer (n = 18) were reviewed independently by three abdominal radiologists blinded to outcome...
April 14, 2018: Clinical Imaging
Sun Hwa Lee, Seong Jong Yun, Hyeon Hwan Jo, Jae Gwang Song
PURPOSE: To compared the diagnostic performance of low-dose (LD) lumbar-spine (L-spine) CT with that of standard-dose (SD) L-spine CT. METHODS: Patients who underwent SD (n = 76) or LD (n = 68) L-spine CT using model-based iterative reconstruction were included. Two reviewers independently analyzed 10 anatomical regions on both CT scans. Also, suggested treatment decision between both CT scans was compared. RESULTS: LD L-spine CT showed an excellent diagnostic accuracy (98...
April 14, 2018: Clinical Imaging
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