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The Value of T2* in Differentiating Metastatic from Benign Axillary Lymph Nodes in Patients with Breast Cancer - A Preliminary In Vivo Study

Chuanming Li, Shan Meng, Xinhua Yang, Jian Wang, Jiani Hu, Ruby John Anto
2014 PLoS ONE  
Conclusions: In vivo T2* can differentiate benign from metastatic axillary lymph nodes in patients with breast cancer.  ...  Accurate detection and determination of axillary lymph node metastasis are crucial for the clinical management of patients with breast cancer.  ...  The dynamic contrast enhancement MRI has been proven to be low in sensitivity for detecting axillary lymph node metastases also [25, 26] .  ... 
doi:10.1371/journal.pone.0084038 pmid:24454715 pmcid:PMC3894179 fatcat:g2fsv2lqwnbsvkqqebef6mz2za

Semi-automatic lymph node segmentation and classification using cervical cancer MR imaging

Nesrine Bnouni, Olfa Mechi, Islem Rekik, Mohamed Salah Rhim, Najoua Essoukri Ben Amara
2018 2018 4th International Conference on Advanced Technologies for Signal and Image Processing (ATSIP)  
The segmentation and classification of Lymph Nodes (LNs) is a fundamental but challenging step in the analysis of medical images of cervical cancer.  ...  First, we fuse the axial T2-Weighted (T2-w) anatomical image and the DW image. Second, we detect LNs using region-growing method in order to compute the final classification.  ...  LYMPH-NODE CLASSIFICATION A.  ... 
doi:10.1109/atsip.2018.8364480 dblp:conf/atsip/BnouniMRRA18 fatcat:jvmf65jgpjdcdopijbzjyy2sx4

Semi-Automatic Lymph Node Segmentation in LN-MRI

G. Unal, G. Slabaugh, A. Ess, A. Yezzi, T. Fang, J. Tyan, M. Requardt, R. Krieg, R. Seethamraju, M. Harisinghani, R. Weissleder
2006 2006 International Conference on Image Processing  
The effectiveness of the approach is demonstrated with a given lymph node segmentation problem in post-contrast pelvic MRI sequences.  ...  The purpose of this study was to utilize nanoparticle-enhanced lymphotropic magnetic resonance imaging (LN-MRI) to explore semi-automated noninvasive nodal cancer staging.  ...  In the given lymph node detection in LN-MRI, multiple MR image sequences such as pre-and post-contrast agent images, different settings such as T2-, T2*-, and T1-weighted are available.  ... 
doi:10.1109/icip.2006.312366 dblp:conf/icip/UnalSEYFTRKSHW06 fatcat:ghgwzsu2bnbyhfzhxg5ihzqo7i

Computer-aided Lymph Node Detection using Pelvic Magnetic Resonance Imaging

Bnouni Nesrine et. al.
2020 International Journal of Computing and Digital Systems  
In pelvic cancer and metastatic PLN, Diffusion Weighted (DW)-MRI exhibits brighter areas indicating tumor and metastatic PLN. This paper combines anatomic T2-Weighted (T2-w) imaging with DW imaging.  ...  Pelvic Lymph Nodes (PLNs) segmentation and classification are fundamental tools in the medical image analysis of pelvic gynecological cancer such as endometrial and cervical cancer.  ...  Pelvic lymph node intensity. Metastatic PLN have an intermediate signal intensity on the axial T2-w MR image. In DW-MRI, metastatic PLNs have high signals.  ... 
doi:10.12785/ijcds/090103 fatcat:wchlgtj6njd3jgno4ne7imfvzy

Progressive Transformation of Germinal Centers in Presacral Space: MRI Findings and Literature Review

Sung Tae Hwang, Deuk Jae Sung, Ki Choon Sim, Na Yeon Han, Beom Jin Park, Min Ju Kim, Jeong Hyeon Lee
2017 Investigative Magnetic Resonance Imaging  
Progressive transformation of germinal centers (PTGC) is an atypical feature seen in lymph nodes with unknown pathogenesis.  ...  PTGC most commonly presents in adolescent and young adult males as solitary painless lymphadenopathy with various durations.  ...  No benefit in any form has been or will be received from a commercial party related directly or indirectly to the subject of this manuscript.  ... 
doi:10.13104/imri.2017.21.1.56 fatcat:rx7zv5byzzecrjruc3ec7szqyq

Molecular and Functional Imaging for Detection of Lymph Node Metastases in Prostate Cancer

Ansje Fortuin, Maarten de Rooij, Patrik Zamecnik, Uwe Haberkorn, Jelle Barentsz
2013 International Journal of Molecular Sciences  
Therefore, in this article the value of imaging techniques to detect lymph node metastases is reviewed.  ...  Knowledge on pathway and size of lymph node metastases has increased with molecular and functional imaging.  ...  Conclusions Conventional CT and MRI play a limited role in lymph node detection in prostate cancer. Pelvic lymph node dissection therefore is a widely used method to evaluate lymph node metastases.  ... 
doi:10.3390/ijms140713842 pmid:23823804 pmcid:PMC3742221 fatcat:jqbaetne4rdtxhaqndja4juy5m

Imaging and Diagnosis for Planning the Surgical Procedure [chapter]

Ferdinand Bauer
2020 Colorectal Cancer [Working Title]  
In this chapter, we present currently used staging modalities with focus on MRI, including optimization of imaging techniques, tumor staging, interpretation help as well as essentials for reporting.  ...  Indeed, rectal MRI has the ability to accurately evaluate a number of important findings that maBay impact patient management, including distance of the tumor to the mesorectal fascia, presence of lymph  ...  Figure 10 . 10 Lymph nodes of same size (4 mm) but with totally different morphology in MRI. A. Lymph node metastasis in a patient with rectal cancer.  ... 
doi:10.5772/intechopen.93873 fatcat:2vhclgdw4rejnkrsslk7u2yn3m

Large parapharyngeal mass: a challenging differential diagnosis

Massimo Ralli, Marco de Vincentiis, Antonio Greco
2018 The Lancet Oncology  
No lymph node involvement was detected by CT and MRI. The preoperative differential diagnosis centered on pleomorphic  ...  A contrast-enhanced Magnetic Resonance Imaging (MRI) scan demonstrated a T2-hyperintense and enhancing lesion measuring 74x52x36 mm centered in the right parapharyngeal space with relatively well-defined  ...  No lymph node involvement was detected by CT and MRI.  ... 
doi:10.1016/s1470-2045(17)30579-x pmid:29508765 fatcat:o46vycbpvrffrmejytp5bgkcaq

Superior Clinical Impact of FDG-PET Compared to MRI for the Follow-up of a Patient with Sacral Lymphoma

Yasuhiro Yamamoto, Toshiaki Taoka, Hirokazu Nakamine
2009 Journal of Clinical and Experimental Hematopathology  
Here we report a case of non-Hodgkin's lymphoma with a huge sacral tumor. After chemotherapy and following radiation therapy, a residual mass was detected on magnetic resonance imaging (MRI).  ...  Seven months after the completion of radiation therapy, a new tumor-like lesion in the sacrum developed on MRI, but hypermetabolic lesions were not detected on 18 F-FDG-PET.  ...  PLB is defined as either development in a single skeletal site, with/without regional lymph node involvement or multiple bone lesions with no visceral or lymph node involvement. 1 Patients with other  ... 
doi:10.3960/jslrt.49.109 pmid:19907115 fatcat:lvq7eqbt2ffphlflklh42allc4

Local staging of rectal cancer: the current role of MRI

Christian Klessen, Patrik Rogalla, Matthias Taupitz
2006 European Radiology  
MRI is superior to endorectal ultrasound, the most widely used staging modality in patients with rectal tumors, in that it visualizes not only the intestinal wall but also the surrounding pelvic anatomy  ...  With the advent of powerful gradient coil systems and highresolution surface coils, magnetic resonance imaging (MRI) has recently extended its role in the staging of rectal cancer.  ...  Future perspectives USPIO A new promising approach to detect metastatic lymph nodes by MRI is imaging in combination with ultrasmall superparamagnetic iron oxide particles (USPIO) as a contrast medium  ... 
doi:10.1007/s00330-006-0388-x pmid:17008990 pmcid:PMC1779628 fatcat:xvw64776obbwfj6wirynja4pu4

99mTc-Nanocolloid SPECT/MRI Fusion for the Selective Assessment of Nonenlarged Sentinel Lymph Nodes in Patients with Early-Stage Cervical Cancer

J. P. Hoogendam, R. P. Zweemer, M. G. G. Hobbelink, M. A. A. J. van den Bosch, R. H. M. Verheijen, W. B. Veldhuis
2015 Journal of Nuclear Medicine  
Patients with enlarged lymph nodes (short axis $ 10 mm) on MRI were excluded. Patients underwent an SLN procedure with preoperative 99m Tc-nanocolloid SPECT/CT-based SLN mapping.  ...  We aimed to explore the accuracy of 99m Tc SPECT/MRI fusion for the selective assessment of nonenlarged sentinel lymph nodes (SLNs) for diagnosing metastases in early-stage cervical cancer patients.  ...  We focused on patients with short-axis nodes (,10 mm) on MRI, because in many centers these are considered nonsuggestive and do not undergo further lymph node assessment with PET/CT before their intraoperative  ... 
doi:10.2967/jnumed.115.164780 pmid:26678614 fatcat:n2eq3nwz65gynai66nnncs5fle

Diffusion-weighted MR imaging in gynecologic cancers

Shigenobu Motoshima, Hiroyuki Irie, Takahiko Nakazono, Toshiharu Kamura, Sho Kudo
2011 Journal of Gynecologic Oncology  
DWI is being applied to the detection and characterization of tumors and the evaluation of treatment response in patients with cancer.  ...  patients with renal dysfunction.  ...  The combination of size and relative ADC values was useful compared with conventional MRI in detecting pelvic lymph node metastasis in patients with cervical and endometrial cancers, and the sensitivity  ... 
doi:10.3802/jgo.2011.22.4.275 pmid:22247805 pmcid:PMC3254847 fatcat:lw5ap7axqjhw5lxx22dvavsyvu

The role of MRI in the management of a prostate cancer patient with bone and lymph nodes metastases. A case report

Maddalena Belmonte, Giulia Saia, Fabio Zugni, Sarah Alessi, Alberto Colombo, Paul E Summers, Stefano Luzzago, Giulia Marvaso, Gennaro Musi, Ottavio De Cobelli, Barbara A Jereczek-Fossa, Giuseppe Petralia
2021 Acta bio-medica : Atenei Parmensis  
In this report we illustrate how MRI provided a comprehensive assessment of local disease as well as bone and lymph node metastases in a patient with PCa. (www.actabiomedica.it).  ...  Magnetic resonance imaging (MRI) is the imaging technique with the highest sensitivity for the detection of bone metastases and has shown promising results also for lymph node assessments.  ...  In this report we illustrate how MRI provided a comprehensive assessment of local disease and lymph node and bone metastases in a patient with PCa.  ... 
doi:10.23750/abm.v92i4.11337 pmid:34487080 pmcid:PMC8477117 fatcat:kjnbsueze5fobfqbhcynswmmna

MRI Detection of Nonproliferative Tumor Cells in Lymph Node Metastases Using Iron Oxide Particles in a Mouse Model of Breast Cancer

Vasiliki Economopoulos, Yuhua Chen, Catherine McFadden, Paula J Foster
2013 Translational Oncology  
Small focal regions of signal loss were detected in images of the axillary and brachial nodes in six of eight mice, at day 14 or later, with microscopy confirming the presence of iron-labeled cancer cells  ...  Cell tracking with magnetic resonance imaging (MRI) and iron nanoparticles is commonly used to monitor the fate of implanted cells in preclinical disease models.  ...  Acknowledgments We thank Francisco Martinez and Andrew Alejski for assistance with MRI hardware, Kristin Chadwick and Gabrielle Siegers for assistance with flow cytometry, and Amanda Hamilton and Emeline  ... 
doi:10.1593/tlo.13121 pmid:23730415 pmcid:PMC3660804 fatcat:2o4mxelxnrdirkpnxzpeaxovga

Magnetic resonance imaging in head and neck radiodiagnosis: An overview

Mahima V. Guledgud, Karthikeya Patil, H. P. Jai Shankar, Prasannasrinivas Deshpande, Rajesh Raman, Tejavathi Nagaraj
2015 Journal of Medicine Radiology Pathology & Surgery  
Inflammatory and neoplastic pathologies affecting the salivary glands, nasopharynx, paranasal sinuses, lymph nodes, orbits, and intracranial structures are particularly amenable to MRI studies.  ...  In this backdrop, this paper aims at reviewing the various applications of MRI in the head and neck region.  ...  between benign and metastatic lymph nodes.  ... 
doi:10.15713/ins.jmrps.24 fatcat:lxs7e4mqabblnisd5ebjq477zm
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