keyword
MENU ▼
Read by QxMD icon Read
search

Rectal MRI

keyword
https://www.readbyqxmd.com/read/29774398/improved-detection-of-a-tumorous-involvement-of-the-mesorectal-fascia-and-locoregional-lymph-nodes-in-locally-advanced-rectal-cancer-using-dce-mri
#1
Marco Armbruster, Melvin D'Anastasi, Veronika Holzner, Martin E Kreis, Olaf Dietrich, Bernhard Brandlhuber, Anno Graser, Martina Brandlhuber
PURPOSE: The prediction of an infiltration of the mesorectal fascia (MRF) and malignant lymph nodes is essential for treatment planning and prognosis of patients with rectal cancer. The aim of this study was to assess the additional diagnostic value of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) for the detection of a malignant involvement of the MRF and of mesorectal lymph nodes in patients with locally advanced rectal cancer. METHODS: In this prospective study, 22 patients with locally advanced rectal cancer were examined with 1...
May 17, 2018: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/29770764/predictive-value-of-mri-detected-extramural-vascular-invasion-in-stage-t3-rectal-cancer-patients-before-neoadjuvant-chemoradiation
#2
Yiqun Sun, Jianwen Li, Lijun Shen, Xiaolin Wang, Tong Tong, Yajia Gu
PURPOSE: We set out to explore the probability of MRI-detected extramural vascular invasion (mr-EMVI) before chemoradiation to predict responses to chemoradiation and survival in stage T3 rectal cancer patients. METHODS: A total of 100 patients with T3 rectal cancer who underwent MRI examination and received neoadjuvant chemoradiation and surgery were enrolled. The correlation between mr-EMVI and other clinical factors were analyzed by chi-square. Logistic regression model was performed to select the potential factors influencing tumor responses to neoadjuvant chemoradiation...
May 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29767284/diagnostic-accuracy-of-mri-in-assessing-tumor-regression-and-identifying-complete-response-in-patients-with-locally-advanced-rectal-cancer-after-neoadjuvant-treatment
#3
Medhat Aker, Darren Boone, Anuradha Chandramohan, Bruce Sizer, Roger Motson, Tan Arulampalam
BACKGROUND: The diagnostic accuracy of Magnetic Resonance Imaging (MRI) in restaging locally advanced rectal cancers (LARC) after neoadjuvant chemo-radio therapy (NCRT) has been under recent scrutiny. There is limited data on the accuracy of MRI and its timing in assessing tumor regression grade (TRG) and in identifying patients with complete response (CR). NCRT seems to cause tissue inflammation and oedema which renders reading the scans difficult for radiologist. AIM: This study aims to assess the accuracy of MRI at different time intervals after NCRT in staging TRG and in identifying CR...
May 16, 2018: Abdominal Radiology
https://www.readbyqxmd.com/read/29754871/dynamic-contrast-enhanced-mr-imaging-of-the-rectum-correlations-between-single-section-and-whole-tumor-histogram-analyses
#4
M H Choi, S N Oh, G E Park, D-M Yeo, S E Jung
PURPOSE: To evaluate the interobserver and intermethod correlations of histogram metrics of dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) parameters acquired by multiple readers using the single-section and whole-tumor volume methods. MATERIALS AND METHODS: Four DCE parameters (Ktrans , Kep , Ve , Vp ) were evaluated in 45 patients (31 men and 14 women; mean age, 61±11 years [range, 29-83 years]) with locally advanced rectal cancer using pre-chemoradiotherapy (CRT) MRI...
May 10, 2018: Diagnostic and Interventional Imaging
https://www.readbyqxmd.com/read/29749569/postoperative-hypofractionated-stereotactic-brain-radiation-hsrt-for-resected-brain-metastases-improved-local-control-with-higher-bed-10
#5
Aryavarta M S Kumar, Jonathan Miller, Seth A Hoffer, David B Mansur, Michael Coffey, Simon S Lo, Andrew E Sloan, Mitchell Machtay
INTRODUCTION: HSRT directed to large surgical beds in patients with resected brain metastases improves local control while sparing patients the toxicity associated with whole brain radiation. We review our institutional series to determine factors predictive of local failure. METHODS: In a total of 39 consecutive patients with brain metastases treated from August 2011 to August 2016, 43 surgical beds were treated with HSRT in three or five fractions. All treatments were completed on a robotic radiosurgery platform using the 6D Skull tracking system...
May 10, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29744860/oncological-outcome-after-mri-based-selection-for-neoadjuvant-chemoradiotherapy-in-the-ocum-rectal-cancer-trial
#6
R Ruppert, T Junginger, H Ptok, J Strassburg, C A Maurer, P Brosi, J Sauer, J Baral, M Kreis, D Wollschlaeger, P Hermanek, S Merkel
BACKGROUND: It is not clear whether all patients with rectal cancer need chemoradiotherapy. A restrictive use of neoadjuvant chemoradiotherapy (nCRT) based on MRI findings for rectal cancer was investigated in this study. METHODS: This prospective multicentre observational study included patients with stage cT2-4 rectal cancer, with any cN and cM0 status. Carcinomas in the middle and lower third that were 1 mm or less from the mesorectal fascia, all cT4 tumours, and all cT3 tumours of the lower third were classified as high risk, and these patients received nCRT followed by total mesorectal excision (TME)...
May 9, 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29741977/laparoscopic-pelvic-exenteration-for-locally-advanced-rectal-cancer-technique-and-short-term-outcomes
#7
Ashish Pokharkar, Praveen Kammar, Ashwin D'souza, Rahul Bhamre, Pavan Sugoor, Avanish Saklani
BACKGROUND: Since last two decades minimally invasive techniques have revolutionized surgical field. In 2003 Pomel first described laparoscopic pelvic exenteration, since then very few reports have described minimally invasive approaches for total pelvic exenteration. METHODS: We report the 10 cases of locally advanced rectal adenocarcinoma which were operated between the periods from March 1, 2017 to November 11, 2017 at the Tata Memorial Hospital, Mumbai. All male patients had lower rectal cancer with prostate involvement on magnetic resonance imaging (MRI)...
May 9, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29732203/is-magnetic-resonance-imaging-helpful-in-detecting-significant-prostate-cancer-in-patients-with-haematospermia-normal-prostate-specific-antigen-level-and-digital-rectal-examination-a-single-institution-observational-and-retrospective-study-in-a-united-kingdom
#8
Rafał Turo, Seth Horsu, Andra Calinciuc, Michal Smolski, Helene Thygesen, Gerard Doyle, Dev Mohan Gulur, Sanjay Das, Bo Pettersson, Ninaad Awsare
Introduction: Haematospermia is an uncommon clinical condition that may be associated with prostate cancer. The optimal investigation of haematospermia is unknown. The aim of this study was to investigate haematospermia as a presenting symptom of significant pathology and to assess the diagnostic value of magnetic resonance imaging (MRI). Material and methods: Patient and treatment parameters were collected from a practice cohort of men referred to a urology center presenting with haematospermia...
2018: Central European Journal of Urology
https://www.readbyqxmd.com/read/29726263/-the-importance-of-pre-operative-mri-detected-extramural-vascular-invasion-in-the-treatment-of-rectal-carcinoma
#9
B Hemmelová, Š Bohatá, J Kyclová, Z Kala, I Penka
INTRODUCTION: Extramural vascular invasion (EMVI) is associated with a poor prognosis in patients with rectal carcinoma. Patients with proven vascular invasion have a shorter progression-free survival and overall survival. Until recently, vascular invasion had been identified primarily by pathologists. Currently, EMVI can be detected preoperatively by magnetic resonance imaging used for rectal cancer staging. Our study aimed at verifying the effect of pre-operative EMVI detection on PFS after resection and comparing this interval (PFS) to the group of patients with vascular invasion identified and confirmed by pathologists...
2018: Rozhledy V Chirurgii: Měsíčník Československé Chirurgické Společnosti
https://www.readbyqxmd.com/read/29722720/mri-linac-and-how-it-may-potentially-lead-to-more-complete-response-in-rectal-cancer
#10
Manish Chand, Rodrigo Oliva Perez
No abstract text is available yet for this article.
June 2018: Diseases of the Colon and Rectum
https://www.readbyqxmd.com/read/29715121/correlation-between-k-trans-and-microvessel-density-in-different-tumors-a-meta-analysis
#11
Hans Jonas Meyer, Andreas Wienke, Alexey Surov
BACKGROUND/AIM: Dynamic contrast-enhanced magnetic resonance imaging (DCE MRI) is a technique based on the measurement of the signal intensity of the investigated tissue before, during, and after administration of an intravenous contrast agent. DCE MRI parameters can reflect tumor angiogenesis and, therefore, can provide information about tumor behavior. The purpose of this meta-analysis was to analyze the reported data regarding associations between Ktrans (volume transfer constant) and microvessel density (MVD) in different tumors...
May 2018: Anticancer Research
https://www.readbyqxmd.com/read/29713217/pelvic-mri-is-endovaginal-or-rectal-filling-needed
#12
Constance Engelaere, Edouard Poncelet, Carole Durot, Anthony Dohan, Pascal Rousset, Christine Hoeffel
Magnetic resonance imaging is the optimal modality for pelvic imaging. It is based on T2-weighted magnetic resonance (MR) sequences allowing uterine and vaginal cavity assessment as well as rectal evaluation. Anatomical depiction of these structures may benefit from distension, and conditions either developing inside the lumen of cavities or coming from the outside may then be better delineated and localized. The need for distension, either rectal or vaginal, and the way to conduct it are matters of debate, depending on indication for which the MR examination is being conducted...
May 2018: Korean Journal of Radiology: Official Journal of the Korean Radiological Society
https://www.readbyqxmd.com/read/29696349/mucinous-components-assessed-by-magnetic-resonance-imaging-in-primary-rectal-cancer-tissue-before-and-after-chemoradiotherapy-and-tumor-response
#13
Hiroshi Miyakita, Sotaro Sadahiro, Takashi Ogimi, Gota Saito, Kazutake Okada, Akira Tanaka, Toshiyuki Suzuki, Hiroshi Kajiwara, Hiroshi Yamamuro, Takeshi Akiba
BACKGROUND: Mucinous rectal carcinoma has been reported to have a lower survival rate and a poorer histologic response to chemoradiotherapy(CRT). Magnetic resonance imaging (MRI) can accurately evaluate the amount of mucin pools (MP) in primary cancer tissue. We compared the degree of MP on MRI before and after CRT with the histologic findings of resected specimens to investigate the predictors of response to CRT. METHODS: The study group comprised 205 patients with rectal adenocarcinoma who received preoperative CRT...
April 26, 2018: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/29684805/detecting-a-rare-composite-small-bowel-lymphoma-by-magnetic-resonance-imaging-coincidentally-a-case-report-with-radiological-surgical-and-histopathological-features
#14
M Pezzella, B Brogna, A Romano, F Torelli, G Esposito, M Petrillo, F M Romano, N Di Martino, A Reginelli, R Grassi
INTRODUCTION: Diagnosing lymphoma continues to prove challenging in the clinical practice. Composite lymphoma (CL) is defined by the coexistence of different lymphoma subtypes in the same anatomical location. This condition has seldom been witnessed in the gastrointestinal (GI) tract. We weren't able to find previous cases in the literature about small bowel CL with follicular lymphoma (FL) and classical Hodgkin lymphoma (CHL). Surgery is the treatment of choice to obtain accurate histology, to manage and prevent acute complications...
April 16, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29675627/rectal-cancer-mri-protocols-signs-and-future-perspectives-radiologists-should-consider-in-everyday-clinical-practice
#15
REVIEW
Andrea Delli Pizzi, Raffaella Basilico, Roberta Cianci, Barbara Seccia, Mauro Timpani, Alessandra Tavoletta, Daniele Caposiena, Barbara Faricelli, Daniela Gabrielli, Massimo Caulo
Magnetic resonance imaging (MRI) allows to non-invasively evaluate rectal cancer staging and to assess the presence of "prognostic signs" such as the distance from the anorectal junction, the mesorectal fascia infiltration and the extramural vascular invasion. Moreover, MRI plays a crucial role in the assessment of treatment response after chemo-radiation therapy, especially considering the growing interest in the new conservative policy (wait and see, minimally invasive surgery). We present a practical overview regarding the state of the art of the MRI protocol, the main signs that radiologists should consider for their reports during their clinical activity and future perspectives...
April 19, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29673038/pelvic-insufficiency-fractures-frequently-occur-following-preoperative-chemo-radiotherapy-for-rectal-cancer-a-nationwide-mri-study
#16
Jesper Beck Jørgensen, Peter Bondeven, Lene Hjerrild Iversen, Søren Laurberg, Bodil Ginnerup Pedersen
AIM: The aim of this prospective case-control study was to evaluate the rate of pelvic insufficiency fractures (PIF) in Denmark using magnetic resonance imaging (MRI) at 3-year follow-up. All patients had rectal cancer and had undergone surgery with or without preoperative chemo-radiotherapy (CRT). METHOD: Patients registered with primary rectal cancer in the Danish Colorectal Cancer Group database, who underwent rectal cancer resection from April 2011 through August 2012, were invited to participate in a national MRI study aiming to detect local recurrence and evaluate quality of the surgical treatment...
April 19, 2018: Colorectal Disease: the Official Journal of the Association of Coloproctology of Great Britain and Ireland
https://www.readbyqxmd.com/read/29668581/clearance-of-human-papillomavirus-related-anal-condylomas-after-oral-and-endorectal-multistrain-probiotic-supplementation-in-an-hiv-positive-male-a-case-report
#17
Giancarlo Ceccarelli, Eugenio Nelson Cavallari, Stefano Savinelli, Luigi Bianchi, Alessandra Pierangeli, Francesco Vullo, Antonio Ciardi, Gabriella D'ettorre
INTRODUCTION: Here we present the case of a 56-year-old human immunodeficiency virus (HIV)-infected man with multiple anal condylomas and positivity for human papilloma virus (HPV) 18 on anal brushing. Biopsies of the anal mucosa led to the diagnosis of Bowen's disease and a subsequent pelvic magnetic resonance imaging (MRI) scan evidenced multiple reactive lymphoadenopathies and large intra-anal condylomas. The patient was treated with a complete excision of Bowen's lesion and with a 4 months course of supplementation with a high concentration multistrain probiotic formulation administered orally and by rectal instillation with the purpose to reduce local inflammation and to enhance local mucosal immunity...
April 2018: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29668301/assessment-of-remaining-tumour-involved-lymph-nodes-with-mri-in-patients-with-complete-luminal-response-after-neoadjuvant-treatment-of-rectal-cancer
#18
Per Loftås, Margrét Sturludóttir, Olof Hallböök, Karin Almlöv, Gunnar Arbman, Lennart Blomqvist
OBJECTIVE: To assess the accuracy of MRI to predict remaining lymph node metastases in patients with complete pathological luminal response (ypT0) after neoadjuvant therapy. METHODS: Data from a national registry were used. Nineteen patients with histopathologically remaining lymph node metastases (ypT0N+) were identified. Another 19 patients without lymph node metastases (ypT0N0) were used as matched controls. Two radiologists blinded to all patient information evaluated staging and restaging MRI that was compared to histopathological findings of the resected specimen...
April 18, 2018: British Journal of Radiology
https://www.readbyqxmd.com/read/29663417/technical-note-a-deep-learning-based-auto-segmentation-of-rectal-tumors-in-mr-images
#19
Jiazhou Wang, Jiayu Lu, Gan Qin, Lijun Shen, Yiqun Sun, Hongmei Ying, Zhen Zhang, Weigang Hu
PURPOSE: Manual contouring of gross tumor volumes (GTV) is a crucial and time-consuming process in rectum cancer radiotherapy. This study aims to develop a simple deep learning based auto segmentation algorithm to segment rectal tumors on T2 weighted MR images. MATERIAL AND METHODS: MRI scans (3T, T2-weighted) of 93 patients with locally advanced (cT3-4 and/or cN1-2) rectal cancer treated with neoadjuvant chemoradiotherapy followed by surgery were enrolled in this study...
April 16, 2018: Medical Physics
https://www.readbyqxmd.com/read/29649321/prediction-of-lateral-pelvic-lymph-node-metastasis-in-patients-with-locally-advanced-rectal-cancer-with-preoperative-chemoradiotherapy-focus-on-mr-imaging-findings
#20
Min Ju Kim, Bo Yun Hur, Eun Sun Lee, Boram Park, Jungnam Joo, Min Jung Kim, Sung Chan Park, Ji Yeon Baek, Hee Jin Chang, Dae Yong Kim, Jae Hwan Oh
PURPOSE: To investigate the predictive factors for lateral pelvic lymph node (LPLN) metastasis in patients with locally advanced rectal cancer treated with preoperative chemoradiotherapy (CRT). MATERIALS AND METHODS: Fifty-seven patients with locally advanced rectal cancer and LPLNs larger than 5 mm underwent LPLN dissection (LPLD) after preoperative CRT. The MRI findings, including the apparent diffusion coefficient value and LPLN size reduction rate before/after CRT; clinical factors; and pathologic results were evaluated to identify the predictive factors associated with LPLN metastasis...
2018: PloS One
keyword
keyword
30098
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"