keyword
MENU ▼
Read by QxMD icon Read
search

Prostate MRI

keyword
https://www.readbyqxmd.com/read/29775699/relationship-between-intraprostatic-urethral-sphincter-status-and-prostate-volume-as-revealed-by-magnetic-resonance-imaging
#1
Fumiyasu Endo, Kazuhiro Ohwaki, Masaki Shimbo, Kazunori Hattori
OBJECTIVES: To evaluate the relationship between the lengths of two regions of the intraprostatic urethral sphincter, the distal region (from the apex to the adenoma; AA) and the proximal region (from the adenoma to the verumontanum; AV) and prostate volume (PV) in patients with clinical benign prostate hyperplasia. METHODS: A total of 110 patients who underwent magnetic resonance imaging (MRI) prior to holmium laser enucleation of the prostate were enrolled. The lengths of two distinct intraprostatic urethral regions were measured on MRI, and we used multiple regression analysis to explore the association between these lengths and PV...
May 15, 2018: Urology
https://www.readbyqxmd.com/read/29772101/computer-aided-diagnosis-of-prostate-cancer-on-magnetic-resonance-imaging-using-a-convolutional-neural-network-algorithm
#2
Junichiro Ishioka, Yoh Matsuoka, Sho Uehara, Yosuke Yasuda, Toshiki Kijima, Soichiro Yoshida, Minato Yokoyama, Kazutaka Saito, Kazunori Kihara, Noboru Numao, Tomo Kimura, Kosei Kudo, Itsuo Kumazawa, Yasuhisa Fujii
OBJECTIVES: To develop a computer-aided diagnosis (CAD) algorithm with a deep learning architecture for detecting prostate cancer on magnetic resonance imaging (MRI) to promote global standardization and diminish variation in the interpretation of prostate MRI. PATIENTS AND METHODS: We retrospectively reviewed data from 335 patients with a prostate specific antigen level of less than 20 ng/ml who underwent MRI and extended systematic prostate biopsy with or without MRI-targeted biopsy...
May 17, 2018: BJU International
https://www.readbyqxmd.com/read/29771696/the-future-of-anesthesia-for-interventional-radiology
#3
Annie Amin, Jason Scott Lane
PURPOSE OF REVIEW: To review novel procedures in interventional radiology and describe anesthetic implications. RECENT FINDINGS: Noninvasive treatment options for patients who are nonsurgical candidates are on the rise. The complication rate for patients receiving anesthesia in the interventional radiology suite is higher than other nonoperating room anesthetizing locations. The investigative use of catheter-directed thrombolysis for acute submassive pulmonary embolism will likely lead to an increased demand for anesthesia assistance...
May 15, 2018: Current Opinion in Anaesthesiology
https://www.readbyqxmd.com/read/29770762/mri-us-fusion-guided-prostate-biopsy-allows-for-equivalent-cancer-detection-with-significantly-fewer-needle-cores-in-biopsy-naive-men
#4
Vidhush K Yarlagadda, Win Shun Lai, Jennifer B Gordetsky, Kristin K Porter, Jeffrey W Nix, John V Thomas, Soroush Rais-Bahrami
PURPOSE: We aimed to investigate the efficiency and cancer detection of magnetic resonance imaging (MRI) / ultrasonography (US) fusion-guided prostate biopsy in a cohort of biopsy-naive men compared with standard-of-care systematic extended sextant transrectal ultrasonography (TRUS)-guided biopsy. METHODS: From 2014 to 2016, 72 biopsy-naive men referred for initial prostate cancer evaluation who underwent MRI of the prostate were prospectively evaluated. Retrospective review was performed on 69 patients with lesions suspicious for malignancy who underwent MRI/US fusion-guided biopsy in addition to systematic extended sextant biopsy...
May 2018: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/29770495/prostate-dce-mri-with-b1-correction-using-an-approximated-analytical-approach
#5
Xinran Zhong, Thomas Martin, Holden H Wu, Krishna S Nayak, Kyunghyun Sung
PURPOSE: To develop and evaluate a practical B1+ correction method for prostate dynamic contrast-enhanced (DCE) MRI analysis. THEORY: We proposed a simple analytical B1+ correction method using a Taylor series approximation to the steady-state spoiled gradient echo signal equation. This approach only requires B1+ maps and uncorrected pharmacokinetic (PK) parameters as input to estimate the corrected PK parameters. METHODS: The proposed method was evaluated using a prostate digital reference object (DRO), and 82 in vivo prostate DCE-MRI cases...
May 16, 2018: Magnetic Resonance in Medicine: Official Journal of the Society of Magnetic Resonance in Medicine
https://www.readbyqxmd.com/read/29770311/-super-active-surveillance-mri-ultrasound-fusion-biopsy-and-ablation-for-less-invasive-management-of-prostate-cancer
#6
REVIEW
Jonathan B Bloom, Samuel A Gold, Graham R Hale, Kareem N Rayn, Vikram K Sabarwal, Ivane Bakhutashvili, Vladimir Valera, Baris Turkbey, Peter A Pinto, Bradford J Wood
Multiparametric magnetic resonance imaging (mpMRI) of the prostate has allowed clinicians to better visualize and target suspicious lesions during biopsy. Targeted prostate biopsies give a more accurate representation of the true cancer volume and stage so that appropriate treatment or active surveillance can be selected. Advances in technology have led to the development of MRI and ultrasound fusion platforms used for targeted biopsies, monitoring cancer progression, and more recently for the application of focal therapy...
April 2018: Gland Surgery
https://www.readbyqxmd.com/read/29769042/mpcad-a-multi-scale-radiomics-driven-framework-for-automated-prostate-cancer-localization-and-detection
#7
Farzad Khalvati, Junjie Zhang, Audrey G Chung, Mohammad Javad Shafiee, Alexander Wong, Masoom A Haider
BACKGROUND: Quantitative radiomic features provide a plethora of minable data extracted from multi-parametric magnetic resonance imaging (MP-MRI) which can be used for accurate detection and localization of prostate cancer. While most cancer detection algorithms utilize either voxel-based or region-based feature models, the complexity of prostate tumour phenotype in MP-MRI requires a more sophisticated framework to better leverage available data and exploit a priori knowledge in the field...
May 16, 2018: BMC Medical Imaging
https://www.readbyqxmd.com/read/29766373/prostate-segmentation-in-mri-using-a-convolutional-neural-network-architecture-and-training-strategy-based-on-statistical-shape-models
#8
Davood Karimi, Golnoosh Samei, Claudia Kesch, Guy Nir, Septimiu E Salcudean
PURPOSE: Most of the existing convolutional neural network (CNN)-based medical image segmentation methods are based on methods that have originally been developed for segmentation of natural images. Therefore, they largely ignore the differences between the two domains, such as the smaller degree of variability in the shape and appearance of the target volume and the smaller amounts of training data in medical applications. We propose a CNN-based method for prostate segmentation in MRI that employs statistical shape models to address these issues...
May 15, 2018: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/29761076/synchronous-bone-metastasis-from-multiple-myeloma-and-prostate-adenocarcinoma-as-initial-presentation-of-coexistent-malignancies
#9
Diego Andres Adrianzen Herrera, Shlomit Goldberg-Stein, Alexander Sankin, Judy Sarungbam, Janaki Sharma, Benjamin A Gartrell
The radiographic appearance of bone metastases is usually determined by tumor histology and can be osteolytic, osteoblastic, or mixed. We present a patient with coexistent bone metastasis from multiple myeloma and prostate adenocarcinoma who exhibited synchronous bone involvement of both histologies within the same bone lesion, a rare phenomenon that has not been previously reported and led to atypical radiographic findings. The radiograph of a 71-year-old man with thigh swelling and pain demonstrated a lytic femoral lesion...
2018: Frontiers in Oncology
https://www.readbyqxmd.com/read/29753548/fusion-prostate-biopsy-outperforms-12-core-systematic-prostate-biopsy-in-patients-with-prior-negative-systematic-biopsy-a-multi-institutional-analysis
#10
Abhinav Sidana, Matthew J Watson, Arvin K George, Ardeshir R Rastinehad, Srinivas Vourganti, Soroush Rais-Bahrami, Akhil Muthigi, Mahir Maruf, Jennifer B Gordetsky, Jeffrey W Nix, Maria J Merino, Baris Turkbey, Peter L Choyke, Bradford J Wood, Peter A Pinto
INTRODUCTION AND OBJECTIVES: Patients with persistently elevated prostate specific antigen (PSA) and prior negative 12-core TRUS prostate biopsy (or biopsies) (systematic biopsy-SBx) are a diagnostic challenge. Repeat SBx or saturation biopsy in this cohort has been shown to have an even lower yield. The aim of our study is to compare the prostate cancer yield of magnetic resonance imaging (MRI) fusion biopsy (FBx) to SBx in a multi-institutional cohort comprised of patients with prior negative biopsies...
May 9, 2018: Urologic Oncology
https://www.readbyqxmd.com/read/29752646/mri-features-after-prostatic-artery-embolization-for-the-treatment-of-medium-and-large-volume-benign-hyperplasia
#11
Hongtao Zhang, Yanguang Shen, Jingjing Pan, Haiyi Wang, Yan Zhong, Yingwei Wang, Huiyi Ye
PURPOSE: To assess magnetic resonance imaging (MRI) features after prostatic artery embolization (PAE) for the treatment of medium- and large-volume benign prostatic hyperplasia and to correlate prostate volume with clinical indexes. METHODS: We retrospectively evaluated 28 patients who underwent PAE. MRI examinations of the prostate were performed to evaluate signal intensity changes and the characteristics of infarcted areas. Prostate volume and the apparent diffusion coefficient (ADC) were measured at an average of 10 days post-PAE and at 1, 3, 6, and 12 months post-PAE...
May 12, 2018: La Radiologia Medica
https://www.readbyqxmd.com/read/29742600/incidental-detection-of-meningioma-by-18f-fmau-pet-ct-in-a-patient-with-suspected-prostate-cancer
#12
Bino Varghese, Erik Velez, Bhushan Desai, Hossein Jadvar
We report on an incidental detection of a meningioma on [F]-2'-fluoro-5-methyl-1-beta-D-arabinofuranosyluracil (F-FMAU) PET/CT scan that was performed during a prospective investigation of F-FMAU PET/CT for targeted biopsy of potential sites of tumor in men with suspected prostate cancer based on elevated prostate-specific antigen level. Neither prostate multiparamteric MRI nor F-FMAU PET/CT localized small volume Gleason 3 + 3 tumor deposits. However, an incidental focal high accumulation of F-FMAU was observed in high right parietal lobe that displayed characteristics of a meningioma on a subsequent brain MRI...
May 7, 2018: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/29742381/mri-targeted-versus-ultrasonography-guided-biopsy-for-suspected-prostate-cancer
#13
EDITORIAL
Michael J Barry, Andrew B Rosenkrantz
New England Journal of Medicine, Volume 378, Issue 19, Page 1835-1836, May 2018.
May 10, 2018: New England Journal of Medicine
https://www.readbyqxmd.com/read/29741982/one-stage-laparoscopic-assisted-anorectoplasty-for-neonates-with-anorectal-malformation-and-recto-prostatic-or-recto-bulbar-fistula-according-to-the-krickenbeck-classification
#14
Hui Xiao, Long Chen, Xiang-Hai Ren, Rui Huang, Mei Diao, Long Li
BACKGROUND: Congenital recto-urethral fistula (RUF) is the most common form of anorectal malformations (ARMs) found in boys. The aim of this study is to review our experience with one-stage laparoscopic procedure in the management of ARMs with recto-prostatic fistula and recto-bulbar fistula. METHODS: Seventeen boys with congenital RUF who underwent one-stage laparoscopy-assisted anorectoplasty (LAARP) between July 2012 and June 2015 were retrospectively in the study...
May 9, 2018: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/29741977/laparoscopic-pelvic-exenteration-for-locally-advanced-rectal-cancer-technique-and-short-term-outcomes
#15
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/29740666/-paradigm-shift-in-urology-prostate-cancer-diagnosis-using-mri-targeted-or-standard-transrectal-ultrasonography-guided-biopsy
#16
B Hadaschik
No abstract text is available yet for this article.
May 8, 2018: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/29734484/radiomic-features-from-pretreatment-biparametric-mri-predict-prostate-cancer-biochemical-recurrence-preliminary-findings
#17
Rakesh Shiradkar, Soumya Ghose, Ivan Jambor, Pekka Taimen, Otto Ettala, Andrei S Purysko, Anant Madabhushi
BACKGROUND: Radiomics or computer-extracted texture features derived from MRI have been shown to help quantitatively characterize prostate cancer (PCa). Radiomics have not been explored depth in the context of predicting biochemical recurrence (BCR) of PCa. PURPOSE: To identify a set of radiomic features derived from pretreatment biparametric MRI (bpMRI) that may be predictive of PCa BCR. STUDY TYPE: Retrospective. SUBJECTS: In all, 120 PCa patients from two institutions, I1 and I2 , partitioned into training set D1 (N = 70) from I1 and independent validation set D2 (N = 50) from I2 ...
May 7, 2018: Journal of Magnetic Resonance Imaging: JMRI
https://www.readbyqxmd.com/read/29733838/validation-of-pi-rads-version-2-for-the-detection-of-prostate-cancer
#18
Sebastian L Hofbauer, Beatrice Kittner, Andreas Maxeiner, Robin Heckmann, Maximillian Reimann, Laura Wiemer, Patrick Asbach, Matthias Haas, Tobias Penzkofer, Carsten Stephan, Frank Friedersdorff, Florian Fuller, Kurt Miller, Hannes Cash
PURPOSE: The second version of the Prostate Imaging Reporting and Data System (PI-RADSv2) was introduced in 2015 to standardize the interpretation and reporting of multiparametric prostate magnetic resonance imaging (mpMRI). Recently, low cancer detection rates (CDR) for PI-RADSv2 category 4 lesions were reported. Therefore the aim of the study was to evaluate the CDR of PI-RADSv2 in a large prospective cohort. METHODS: The study included 704 consecutive men with primary or prior negative biopsies who underwent MRI/ultrasound fusion-guided targeted biopsy (TB) and 10-core systematic prostate biopsy (SB) between September 2015 and May 2017...
May 4, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29733837/multiparametric-mri-ultrasound-fusion-prostate-biopsy-are-two-biopsy-cores-per-mri-lesion-required
#19
P Dimitroulis, R Rabenalt, A Nini, A Hiester, I Esposito, L Schimmöller, G Antoch, P Albers, C Arsov
PURPOSE: For multiparametric MRI/Ultrasound fusion prostate biopsy (FUSBx) the number of taken biopsy cores is arbitrary established by urologists. Moreover, general consensus on the number of biopsy cores to be obtained from a single MRI-lesion is lacking. Therefore, we aimed to evaluate the feasibility of obtaining only one biopsy core per MRI-lesion. MATERIALS AND METHODS: We retrospectively evaluated 2128 biopsy cores of 1064 prostatic lesions (two cores per lesion) in 418 patients regarding prostate cancer (PCa) detection (histology) and Gleason score (GS) of the first biopsy core (FBC) compared to the second biopsy core (SBC)...
May 4, 2018: Journal of Urology
https://www.readbyqxmd.com/read/29733695/can-apparent-diffusion-coefficient-values-assist-pi-rads-version-2-dwi-scoring-a-correlation-study-using-the-pi-radsv2-and-international-society-of-urological-pathology-systems
#20
Sonia Gaur, Stephanie Harmon, Lauren Rosenblum, Matthew D Greer, Sherif Mehralivand, Mehmet Coskun, Maria J Merino, Bradford J Wood, Joanna H Shih, Peter A Pinto, Peter L Choyke, Baris Turkbey
OBJECTIVE: The purposes of this study were to assess correlation of apparent diffusion coefficient (ADC) and normalized ADC (ratio of tumor to nontumor tissue) with the Prostate Imaging Reporting and Data System version 2 (PI-RADSv2) and updated International Society of Urological Pathology (ISUP) categories and to determine how to optimally use ADC metrics for objective assistance in categorizing lesions within PI-RADSv2 guidelines. MATERIALS AND METHODS: In this retrospective study, 100 patients (median age, 62 years; range, 44-75 years; prostate-specific antigen level, 7...
May 7, 2018: AJR. American Journal of Roentgenology
keyword
keyword
7558
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"