Articles

Methadone-induced encephalopathy: a case series and literature review

Accidental ingestion or consumption of supra-therapeutic doses of methadone can result in neurological sequelae in humans. We aimed to determine the neurological deficits of methadone-poisoned patients admitte...

Authors: Maryam Haghighi-Morad, Zahra Naseri, Nazila Jamshidi, Hossein Hassanian-Moghaddam, Nasim Zamani and Leila Ahmad-Molaei

Dual-energy spectral CT quantitative parameters for the differentiation of Glioma recurrence from treatment-related changes: a preliminary study

Differentiating glioma recurrence from treatment-related changes can be challenging on conventional imaging. We evaluated the efficacy of quantitative parameters measured by dual-energy spectral computed tomog...

Authors: Yanchun Lv, Jian Zhou, Xiaofei Lv, Li Tian, Haoqiang He, Zhigang Liu, Yi Wu, Lujun Han, Meili Sun, Yadi Yang, Chengcheng Guo, Cong Li, Rong Zhang, Chuanmiao Xie, Yinsheng Chen and Zhongping Chen

Preliminary application of 3.0 T magnetic resonance chemical exchange saturation transfer imaging in brain metastasis of lung cancer

Lung cancer brain metastases are very common and one of the common causes of treatment failure. We aimed to examine the clinical use of chemical exchange saturation transfer (CEST) technology in the evaluation...

Authors: Yonggui Yang, Xiaobo Qu, Yihui Huang, Khan Afsar, Gen Yan, Gang Guo and Shaoyin Duan

Assessing and reducing PET radiotracer infiltration rates: a single center experience in injection quality monitoring methods and quality improvement

Successful injection of radiolabeled compounds is critical for positron emission tomography (PET) imaging. A poor quality injection limits the tracer availability in the body and can impact diagnostic results....

Authors: Dustin R. Osborne, Shelley N. Acuff, Michael Fang, Melissa D. Weaver and Yitong Fu

An enhanced adaptive non-local means algorithm for Rician noise reduction in magnetic resonance brain images

The Rician noise formed in magnetic resonance (MR) imaging greatly reduced the accuracy and reliability of subsequent analysis, and most of the existing denoising methods are suitable for Gaussian noise rather...

Authors: Kaixin Chen, Xiao Lin, Xing Hu, Jiayao Wang, Han Zhong and Linhua Jiang

Pre-contrast T1 and cartilage thickness as confounding factors in dGEMRIC when evaluating human cartilage adaptation to physical activity

The dGEMRIC (delayed Gadolinium-Enhanced MRI of Cartilage) technique has been used in numerous studies for quantitative in vivo evaluation of the relative glycosaminoglycan (GAG) content in cartilage. The purp...

Authors: Carl Johan Tiderius, Zana K. Hawezi, Lars E. Olsson and Leif E. Dahlberg

Automated classification of dense calcium tissues in gray-scale intravascular ultrasound images using a deep belief network

IVUS is widely used to quantitatively assess coronary artery disease. The purpose of this study was to automatically characterize dense calcium (DC) tissue in the gray scale intravascular ultrasound (IVUS) ima...

Authors: Juhwan Lee, Yoo Na Hwang, Ga Young Kim, Ji Yean Kwon and Sung Min Kim

Feasibility evaluation of micro-optical coherence tomography (μOCT) for rapid brain tumor type and grade discriminations: μOCT images versus pathology

Precise identification, discrimination and assessment of central nervous system (CNS) tumors is of critical importance to brain neoplasm treatment. Due to the complexity and limited resolutions of the existing...

Authors: Xiaojun Yu, Chi Hu, Wenfei Zhang, Jie Zhou, Qianshan Ding, M. T. Sadiq, Zeming Fan, Zhaohui Yuan and Linbo Liu

Reduced regional flow in the left ventricle after anterior acute myocardial infarction: a case control study using 4D flow MRI

Acute myocardial infarction (AMI) alters left ventricular (LV) hemodynamics, resulting in decreased global LV ejection fraction and global LV kinetic energy. We hypothesize that anterior AMI effects localized ...

Authors: Philip A. Corrado, Jacob A. Macdonald, Christopher J. François, Niti R. Aggarwal, Jonathan W. Weinsaft and Oliver Wieben

Comparative evaluation of image registration methods with different interest regions in lung cancer radiotherapy

Lung cancer is a leading cause of morbidity and mortality worldwide. Radiotherapy for lung cancer is beneficial in both the radical and palliative settings, and technologic advances in recent years now afford ...

Authors: Xiaohui Cao, Ming Liu, Fushan Zhai, Nan Li, Feng Li, Chaoen Bao, Yinliang Liu and Gang Chen

Association between basilar artery configuration and Vessel Wall features: a prospective high-resolution magnetic resonance imaging study

The relationship between intracranial vessel configuration and wall features remains poorly investigated. Therefore, we aimed to investigate the relationship between the distal and proximal anatomical configur...

Authors: Ziqi Xu, Mingyao Li, Zhikai Hou, Jinhao Lyu, Na Zhang, Xin Lou, Zhongrong Miao and Ning Ma

Time-lapse angiography of the ocular fundus: a new video-angiography

Ocular fundus angiography is an indispensable component of the tests utilized for fundus diseases. Dynamic angiography results can provide additional information; however, many difficulties remain. In this stu...

Authors: Chufeng Gu, Jili Chen, Tong Su and Qinghua Qiu

Diagnostic accuracy of multi-slice computed tomography in children with Abernethy malformation

Abernethy malformation is a rare congenital abnormality. Imaging examination is an important method for the diagnosis. The purpose of this study was to demonstrate manifestations of multi-slice computed tomogr...

Authors: Chen Guo, Yu-Min Zhong, Qian Wang, Li-Wei Hu, Xiao-Hong Gu, Hong Shao, Wei Wu, Jian-Feng Cao and Hai-Sheng Qiu

Evaluation of venous pathology of the lower extremities with triggered angiography non-contrast-enhanced magnetic resonance imaging

To explore the diagnostic performance of triggered angiography non-contrast-enhanced magnetic resonance imaging (TRANCE-MRI) for the evaluation of venous pathology of the lower extremity.

Authors: Yao-Kuang Huang, Yuan-Hsi Tseng, Chih-Hung Lin, Yuan-Hsiung Tsai, Yin-Chen Hsu, Shih-Chung Wang and Chien-Wei Chen

Inter and intra-reliability of ultrasonography for the measurement of abdominal subcutaneous & visceral adipose tissue thickness at 12 weeks gestation

Excess abdominal adiposity cause metabolic disturbances, particularly in pregnancy. Methods of accurate measurement are limited in pregnancy due to risks associated with these procedures. This study outlines a...

Authors: Alexandra Cremona, Kevin Hayes, Clodagh S. O’Gorman, Ciara Ní Laighin, Khadijah I. Ismail, Alan E. Donnelly, Jill Hamilton and Amanda Cotter

Magnetic resonance imaging findings of idiopathic granulomatous mastitis: can it be an indirect sign of treatment success or fail?

Authors: Ayşegül Altunkeser, Fatma Zeynep Arslan and Mehmet Ali Eryılmaz

Ultrasound assessment of tensile stress in carotid arteries of healthy human subjects with varying age

Arterial remodeling is thought to reflect the adaptation of the vessel wall to mechanical and hemodynamic stimuli and contributes to the progression of cardiovascular and cerebrovascular diseases. Tensile stre...

Authors: Xianghong Luo, Lianfang Du and Zhaojun Li

A comparative analysis of diffusion-weighted imaging and ultrasound in thyroid nodules

Diffusion-weighted imaging (DWI) and ultrasound are commonly used methods to examine thyroid nodules, but their comparative value is rarely studied. We evaluated the utility of DWI and ultrasound in differenti...

Authors: Weidan Kong, Xiuhui Yue, Jiliang Ren and Xiaofeng Tao

Evaluation of microvascular changes in the perifoveal vascular network using optical coherence tomography angiography (OCTA) in type I diabetes mellitus: a large scale prospective trial

Diabetic retinopathy (DR) is the leading cause of blindness in type 1 Diabetes Mellitus (DM) patients, as a consequence of impaired blood flow in the retina. Optical coherence tomography angiography (OCTA) is ...

Authors: Javier Zarranz-Ventura, Marina Barraso, Anibal Alé-Chilet, Teresa Hernandez, Cristian Oliva, Jesus Gascón, Anna Sala-Puigdollers, Marc Figueras-Roca, Irene Vinagre, Emilio Ortega, Enric Esmatjes and Alfredo Adan

Localising occult prostate cancer metastasis with advanced imaging techniques (LOCATE trial): a prospective cohort, observational diagnostic accuracy trial investigating whole–body magnetic resonance imaging in radio-recurrent prostate cancer

Accurate whole-body staging following biochemical relapse in prostate cancer is vital in determining the optimum disease management. Current imaging guidelines recommend various imaging platforms such as compu...

Authors: Sola Adeleke, Arash Latifoltojar, Harbir Sidhu, Myria Galazi, Taimur T. Shah, Joey Clemente, Reena Davda, Heather Ann Payne, Manil D. Chouhan, Maria Lioumi, Sue Chua, Alex Freeman, Manuel Rodriguez-Justo, Anthony Coolen, Sachin Vadgama, Steve Morris…

Gadoxetate-enhanced dynamic contrast-enhanced MRI for evaluation of liver function and liver fibrosis in preclinical trials

To facilitate translational drug development for liver fibrosis, preclinical trials need to be run in parallel with clinical research. Liver function estimation by gadoxetate-enhanced dynamic contrast-enhanced...

Authors: Jimi Huh, Su Jung Ham, Young Chul Cho, Bumwoo Park, Bohyun Kim, Chul-Woong Woo, Yoonseok Choi, Dong-Cheol Woo and Kyung Won Kim

Adding trans-abdominal elastography to the diagnostic tool for an ileal gastrointestinal stromal tumor: a case report

Diagnosis of gastrointestinal stromal tumors (GISTs) in the distal small intestine is difficult by endoscopic ultrasound. This is the first reported case of an ileal GIST, which is diagnosed by transabdominal ...

Authors: Wan-Ching Lien, Po-Chu Lee, Min-Tsan Lin, Chih-Heng Chang and Hsiu-Po Wang

Clinical manifestations and multi-slice computed tomography characteristics of solid pseudopapillary neoplasms of the pancreas between males and females

Solid-pseudo papillary neoplasms of pancreas (SPNP) are rare in men and are often misdiagnosed. This study aimed to analyze the clinical and multi-slice computer tomography (MSCT) features of patients with SPN...

Authors: Shuguang Shi, Ying Zhou and Chunhong Hu

MRI-based radiomics of rectal cancer: preoperative assessment of the pathological features

This study aimed to evaluate the significance of MRI-based radiomics model derived from high-resolution T2-weighted images (T2WIs) in predicting tumor pathological features of rectal cancer.

Authors: Xiaolu Ma, Fu Shen, Yan Jia, Yuwei Xia, Qihua Li and Jianping Lu

Evaluating the performance of convolutional neural networks with direct acyclic graph architectures in automatic segmentation of breast lesion in US images

Outlining lesion contours in Ultra Sound (US) breast images is an important step in breast cancer diagnosis. Malignant lesions infiltrate the surrounding tissue, generating irregular contours, with spiculation...

Authors: Marly Guimarães Fernandes Costa, João Paulo Mendes Campos, Gustavo de Aquino e Aquino, Wagner Coelho de Albuquerque Pereira and Cícero Ferreira Fernandes Costa Filho

Comparing complications of urethral stricture across various ages: a retrospective analysis of findings from retrograde urethrogram and voiding cysto-urethrogram over 10 years

To determine the rate and the distribution of the structural defects in the urinary bladder complicating urethral stricture in men, and to compare the complications observed in the younger patients to those ob...

Authors: Ikenna I. Nnabugwu, Augustine C. Onuh, Solomon K. Anyimba and Samuel O. Mgbor

Potential use of a diluted high-relaxivity gadolinium-based intra-articular contrast agent for magnetic resonance arthrography: an in-vitro study

Magnetic resonance arthrography (MRA) requires intra-articular injection of gadolinium-based diluted paramagnetic contrast material. To our knowledge, gadobenate dimeglumine (Gd-BOPTA) has never been used for ...

Authors: Carmelo Messina, Domenico Albano, Davide Orlandi, Vito Chianca, Angelo Corazza, Federica Ferrari, Salvatore Gitto and Luca Maria Sconfienza

The use of non-contrast-enhanced MRI to evaluate serial changes in endoleaks after aortic stenting: a case report

Aortic dissection is a life-threatening syndrome that sometimes requires emergency intervention, and endovascular aortic aneurysm repair (EVAR) is a treatment option. Long-term image follow-up is also required...

Authors: Yu-Li Lee, Yao-Kuang Huang, Li-Sheng Hsu, Pang-Yen Chen and Chien-Wei Chen

Comparison of conventional and Si-photomultiplier-based PET systems for image quality and diagnostic performance

A new generation of positron emission tomography with computed tomography (PET-CT) was recently introduced using silicon (Si) photomultiplier (PM)-based technology. Our aim was to compare the image quality and...

Authors: Jenny Oddstig, Sigrid Leide Svegborn, Helen Almquist, Ulrika Bitzén, Sabine Garpered, Fredrik Hedeer, Cecilia Hindorf, Jonas Jögi, Lena Jönsson, David Minarik, Richard Petersson, Annika Welinder, Per Wollmer and Elin Trägårdh

Half-body MRI volumetry of abdominal adipose tissue in patients with obesity

The purpose of this study was to determine to what extent the whole volumes of abdominal subcutaneous (ASAT) and visceral adipose tissue (VAT) of patients with obesity can be predicted by using data of one bod...

Authors: Nicolas Linder, Kilian Solty, Anna Hartmann, Tobias Eggebrecht, Matthias Blüher, Roland Stange and Harald Busse

Ataxia as the main manifestation of tumor-like primary angiitis of the central nervous system: a case report and literature review

Primary angiitis of the central nervous system (PACNS) is a rare disease, and tumor-like primary angiitis of the central nervous system is even rarer. Histopathology is the gold standard for tumor-mimicking PA...

Authors: Yu-Jing Huang, Li Zhang, Ying Mao and Guang-Xian Nan

Development of a novel radioligand for imaging 18-kD translocator protein (TSPO) in a rat model of Parkinson’s disease

The inflammation reaction in the brain may stimulate damage repair or possibly lead to secondary brain injury. It is often associated with activated microglia, which would overexpress 18-kDa translocator prote...

Authors: Chun-Yi Wu, Yang-Yi Chen, Jia-Jia Lin, Jui-Ping Li, Jen-Kun Chen, Te-Chun Hsieh and Chia-Hung Kao

Combination of CEUS and MRI for the diagnosis of periampullary space-occupying lesions: a retrospective analysis

The value of magnetic resonance imaging (MRI), contrast-enhanced ultrasound (CEUS), and the combination of CEUS and MRI (CCWM) for the diagnosis of periampullary space-occupying lesions (PSOL) was investigated.

Authors: Xin-Pei Chen, Jiang Liu, Jing Zhou, Peng-Cheng Zhou, Jian Shu, Lu-Lu Xu, Bo Li and Song Su

Value of virtual monochromatic spectral image of dual-layer spectral detector CT with noise reduction algorithm for image quality improvement in obese simulated body phantom

Dual-layer spectral detector CT (SDCT) may provide several theoretical advantages over pre-existing DECT approaches in terms of adjustment-free sampling number and dose modulation, beam hardening correction, a...

Authors: Hyo-Jin Kang, Jeong Min Lee, Sang Min Lee, Hyun Kyung Yang, Ri Hyeon Kim, Ju Gang Nam, Aruna Karnawat and Joon Koo Han

Perfusion imaging with 320-slice spiral computed tomography and color-coded digital subtraction angiography for assessing acute skeletal muscle ischemia-reperfusion injury in a rabbit model

In recent years, skeletal muscle-related ischemia-reperfusion injury (IRI) has become more common. IRI can lead to severe limb injuries, multiple organ failure, and even death in some cases. However, there is ...

Authors: Chengzhi Li, Xingyi Liu, Huimin You, Hong Zhang, Yuqi Liu and Yan Zhang

Relation between carotid vulnerable plaques and peripheral leukocyte: a case-control study of comparison utilizing multi-parametric contrast-enhanced ultrasound

This study evaluates carotid vulnerable plaques using contrast-enhanced ultrasound (CEUS) and explores the relationship between vulnerable plaques and leukocytes.

Authors: Xianghong Luo, Wanbin Li, Yun Bai, Lianfang Du, Rong Wu and Zhaojun Li

Automatic glioma segmentation based on adaptive superpixel

The automatic glioma segmentation is of great significance for clinical practice. This study aims to propose an automatic method based on superpixel for glioma segmentation from the T2 weighted Magnetic Resona...

Authors: Yaping Wu, Zhe Zhao, Weiguo Wu, Yusong Lin and Meiyun Wang

Sonographic estimation of gestational age from 20 to 40 weeks by fetal kidney lengths’ measurements among pregnant women in Portharcourt, Nigeria

Ultrasonography has become an indispensible tool in the management of obstetric patients. Accurate determination of fetal gestational age (FGA) has posed great challenge to patient management as the accuracy o...

Authors: Everistus Obinna Abonyi, Charles Ugwoke Eze, Kennedy Kenechukwu Agwuna and Warric Sobechukwu Onwuzu

Quantitative margin assessment of radiofrequency ablation of a solitary colorectal hepatic metastasis using MIRADA RTx on CT scans: a feasibility study

Compared to surgery, radiofrequency ablation(RFA) for colorectal liver metastasis(CRLM) is associated with higher local recurrence(LR) rates. A wide margin (at least 5 mm) is generally recommended to prevent L...

Authors: B. G. Sibinga Mulder, P. Hendriks, T. R. Baetens, A. R. van Erkel, C. S. P. van Rijswijk, R. W. van der Meer, C. J. H. van de Velde, A. L. Vahrmeijer, J. S. D. Mieog and M. C. Burgmans

Diagnostic value of whole-body MRI in Opsoclonus-myoclonus syndrome: a clinical case series (3 case reports)

Opsoclonus-myoclonus syndrome (OMS) is a rare clinical disorder and typically occurs in association with occult neuroblastic tumor in pediatric patients. I-123 metaiodobenzylguanidine (mIBG) scintigraphy is wi...

Authors: Corinna Storz, Roland Bares, Martin Ebinger, Rupert Handgretinger, Ilias Tsiflikas and Jürgen F. Schäfer

Assessment of peripheral muscle thickness and architecture in healthy volunteers using hand-held ultrasound devices; a comparison study with standard ultrasound

Pocket-sized ultrasound devices are increasingly used in a variety of clinical situations, and perform well against standard ultrasound machines. We sought to investigate if a pocket-sized ultrasound device ca...

Authors: Peter Turton, Richard Hay and Ingeborg Welters

Non-contrast-enhanced magnetic resonance angiography of facial arteries for pre-operative evaluation of vascularized submental lymph node flaps

The aim of this study was to compare non-contrast-enhanced 3D phase contrast magnetic resonance angiography (3D PC-MRA) and conventional intravenous administration of contrast media, i.e., contrast-enhanced MR...

Authors: Ming-Chen Wu, Ming-Yi Hsu, Ren-Fu Shie, Ming-Huei Cheng, Fang-I Chu, Chien-Yuan Lin, Yui-Ping Fan and Sung-Yu Chu

Radiomic features from MRI distinguish myxomas from myxofibrosarcomas

Myxoid tumors pose diagnostic challenges for radiologists and pathologists. All myxoid tumors can be differentiated from each other using fluorescent in-situ hybridization (FISH) or immunohistochemical markers...

Authors: Teresa Martin-Carreras, Hongming Li, Kumarasen Cooper, Yong Fan and Ronnie Sebro

Evaluation of an optimized metal artifact reduction algorithm for flat-detector angiography compared to DSA imaging in follow-up after neurovascular procedures

Flat detector CT – angiography (FDCTA) has become a valuable imaging tool in post- and peri-interventional imaging after neurovascular procedures. Metal artifacts produced by radiopaque implants like clips or ...

Authors: Nadine Amelung, Volker Maus, Daniel Behme, Ismini E. Papageorgiou, Johanna Rosemarie Leyhe, Michael Knauth and Marios Nikos Psychogios

Unenhanced multidetector computed tomography findings in acute central pulmonary embolism

Computed tomography pulmonary angiography (CTPA) is the gold standard for the diagnosis of pulmonary embolism (PE). However, contrast is contraindicated in some patients. The purpose of this study was to deter...

Authors: Chiao-Hsuan Chien, Fu-Chieh Shih, Chin-Yu Chen, Chia-Hui Chen, Wan-Ling Wu and Chee-Wai Mak

Image quality and pathology assessment in CT Urography: when is the low-dose series sufficient?

Our aim was to compare CT images from native, nephrographic and excretory phases using image quality criteria as well as the detection of positive pathological findings in CT Urography, to explore if the radia...

Authors: Bharti Kataria, Jonas Nilsson Althén, Örjan Smedby, Anders Persson, Hannibal Sökjer and Michael Sandborg

Computed tomography-based predictive nomogram for differentiating primary progressive pulmonary tuberculosis from community-acquired pneumonia in children

To investigate the value of predictive nomogram in optimizing computed tomography (CT)-based differential diagnosis of primary progressive pulmonary tuberculosis (TB) from community-acquired pneumonia (CAP) in...

Authors: Bei Wang, Min Li, He Ma, Fangfang Han, Yan Wang, Shunying Zhao, Zhimin Liu, Tong Yu, Jie Tian, Di Dong and Yun Peng

Assessment the reliability of ultrasonography in the imaging of the plantar fascia: a comparative study

Imaging methods for the plantar fascia have included radiography, ultrasound and magnetic resonance imaging (MRI), all of which have provided valuable information. This study assessed the reliability of ultras...

Authors: Jing Wu, Yuan-zhi Zhang, Yang Gao and Tian-you Luo

The benefits of radiological imaging for postoperative orthostatic headache: a case report

Traditionally, the diagnosis of post-dural puncture headache (PDPH) relied upon the patient’s history regarding dural puncture and symptoms, such as orthostatic headache. However, such evidence may not always ...

Authors: Mu-Jung Lee and Chih-Jen Hung

T1- and ECV-mapping in clinical routine at 3 T: differences between MOLLI, ShMOLLI and SASHA

T1 mapping sequences such as MOLLI, ShMOLLI and SASHA make use of different technical approaches, bearing strengths and weaknesses. It is well known that obtained T1 relaxation times differ between the sequenc...

Authors: Julius F. Heidenreich, Andreas M. Weng, Julian Donhauser, Andreas Greiser, Kelvin Chow, Peter Nordbeck, Thorsten A. Bley and Herbert Köstler