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https://www.readbyqxmd.com/read/29230679/short-tau-inversion-recovery-in-breast-diffusion-weighted-imaging-signal-to-noise-ratio-and-apparent-diffusion-coefficients-using-a-breast-phantom-in-comparison-with-spectral-attenuated-inversion-recovery
#1
Tsukasa Yoshida, Atsushi Urikura, Kensei Shirata, Yoshihiro Nakaya, Masahiro Endo, Shingo Terashima, Yoichiro Hosokawa
OBJECTIVE: This study aimed to compare the signal-to-noise ratios (SNRs) and apparent diffusion coefficients (ADCs) obtained using two fat suppression techniques in breast diffusion-weighted imaging (DWI) of a phantom. MATERIALS AND METHODS: The breast phantom comprised agar gels with four different concentrations of granulated sugar (samples 1, 2, 3, and 4). DWI with short tau inversion recovery (STIR-DWI) and that with spectral attenuated inversion recovery (SPAIR-DWI) were performed using 3...
December 11, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/29230524/one-view-digital-breast-tomosynthesis-as-a-stand-alone-modality-for-breast-cancer-detection-do-we-need-more
#2
Alejandro Rodriguez-Ruiz, Albert Gubern-Merida, Mechli Imhof-Tas, Susanne Lardenoije, Alexander J T Wanders, Ingvar Andersson, Sophia Zackrisson, Kristina Lång, Magnus Dustler, Nico Karssemeijer, Ritse M Mann, Ioannis Sechopoulos
PURPOSE: To compare the performance of one-view digital breast tomosynthesis (1v-DBT) to that of three other protocols combining DBT and mammography (DM) for breast cancer detection. MATERIALS AND METHODS: Six radiologists, three experienced with 1v-DBT in screening, retrospectively reviewed 181 cases (76 malignant, 50 benign, 55 normal) in two sessions. First, they scored sequentially: 1v-DBT (medio-lateral oblique, MLO), 1v-DBT (MLO) + 1v-DM (cranio-caudal, CC) and two-view DM + DBT (2v-DM+2v-DBT)...
December 11, 2017: European Radiology
https://www.readbyqxmd.com/read/29230131/body-art-confounding-a-case-of-breast-cancer
#3
Lena Gowharji, Dana Smetherman, Brett Roberts
Background: Heavy metals in tattoo ink can be deposited in axillary lymph nodes, mimicking malignant calcifications. High-density foci in axillary lymph nodes can be the sequelae of a benign or malignant process. Case Report: A 34-year-old female presented with left breast discomfort. Mammography showed suspicious left breast calcifications for which biopsy revealed multicentric ductal carcinoma in situ. Imaging also showed high-density foci in her left axillary lymph nodes suspicious for nodal metastases; however, biopsy of the lymph nodes found the high-density foci to be pigment-laden histiocytes from tattoo ink metallic deposits...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/29230127/intraarterial-liver-directed-therapies-the-role-of-interventional-oncology
#4
REVIEW
Jenson Ma, Juan Martin Gimenez, Tyler Sandow, Daniel Devun, David Kirsch, Paul Gulotta, Patrick Gilbert, Dennis Kay
Background: Since the early 1990s, the minimally invasive image-guided therapies used in interventional oncology to treat hepatocellular carcinoma have continued to evolve. Additionally, the range of applications has been expanded to the treatment of hepatic metastases from colorectal cancer, neuroendocrine tumors, cholangiocarcinoma, breast cancer, melanoma, and sarcoma. Methods: We searched the literature to identify publications from 1990 to the present on various image-guided intraarterial therapies and their efficacy, as well as their role in the management of primary and secondary liver malignancies...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/29229179/clinical-role-of-breast-mri-now-and-going-forward
#5
REVIEW
D Leithner, G J Wengert, T H Helbich, S Thakur, R E Ochoa-Albiztegui, E A Morris, K Pinker
Magnetic resonance imaging (MRI) is a well-established method in breast imaging, with manifold clinical applications, including the non-invasive differentiation between benign and malignant breast lesions, preoperative staging, detection of scar versus recurrence, implant assessment, and the evaluation of high-risk patients. At present, dynamic contrast-enhanced MRI is the most sensitive imaging technique for breast cancer diagnosis, and provides excellent morphological and to some extent also functional information...
December 8, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29229142/improvement-of-consistency-in-delineating-breast-lumpectomy-cavity-using-surgical-clips
#6
Siavash Atrchian, Pejman Sadeghi, Wladyslawa Cwajna, Lucy Helyer, Dorianne Rheaume, Maureen Nolan, Parisa Sadeghi, James Robar
BACKGROUND: Delineation of lumpectomy cavity for whole breast radiation therapy after breast conserving surgery can be challenging because of poor visualization of the cavity. The use of surgical clips on lumpectomy cavity walls has been suggested as an effective and low-cost method to improve the accuracy and consistency of lumpectomy cavity delineation. MATERIALS AND METHODS: Twenty-three eligible female breast cancer patients who were treated with lumpectomy and adjuvant radiation therapy were recruited for this study...
January 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29229140/a-novel-pilot-animal-model-for-the-surgical-prevention-of-lymphedema-the-power-of-optical-imaging
#7
Bao Ngoc N Tran, Joseph P Angelo, Jeong Heon Lee, Qing Z Ruan, Rita G Laurence, Hak Soo Choi, Bernard T Lee, Dhruv Singhal
BACKGROUND: Breast cancer-related lymphedema affects more than 400,000 survivors in the United States. In 2009, lymphatic microsurgical preventive healing approach (LYMPHA) was first described as a surgical technique to prevent lymphedema by bypassing divided arm lymphatics into adjacent veins at the time of an axillary lymph node dissection. We describe the first animal model of LYMPHA. METHODS: In Yorkshire pigs, each distal hind limb lymphatic system was cannulated and injected with a different fluorophore (human serum albumin-conjugated indocyanine green or Evans Blue)...
January 2018: Journal of Surgical Research
https://www.readbyqxmd.com/read/29229020/normalization-of-elevated-tumor-marker-ca27-29-after-bilateral-lung-transplantation-in-a-patient-with-breast-cancer-and-idiopathic-pulmonary-fibrosis
#8
Mehmet Sitki Copur, Julie Marie Wurdeman, Debra Nelson, Ryan Ramaekers, Dron Gauchan, David Crockett
Solid tumors involving glandular organs express mucin glycoprotein which is eventually shed into the circulation. As aresult these proteins can easily be measured in the serum and be used as potential tumor markers. The most commonly used tumor markers for breast cancer are CA 27-29 and CA 15-3, which both measure the glycoprotein product of the mucin-1 (MUC1) gene. CA 27-29 has been approved by the US Food and Drug Administration for monitoring disease activity in breast cancer patients. Most oncology clinical practice guidelines do not recommend the use of tumor markers for routine surveillance of early stage disease but recognize their utility in the metastatic setting...
December 11, 2017: Oncology Research
https://www.readbyqxmd.com/read/29227816/the-use-of-breast-imaging-for-predicting-response-to%C3%A2-neoadjuvant-lapatinib-trastuzumab-and-their-combination-in-her2-positive-breast-cancer-results%C3%A2-from-neo-altto
#9
S Di Cosimo, C Campbell, H A Azim, G Galli, G Bregni, G Curigliano, C Criscitiello, M Izquierdo, L de la Pena, D Fumagalli, L Fein, J Vinholes, W M J Ng, M Colleoni, A Ferro, B J Naume, A Patel, J Huober, M J Piccart-Gebhart, J Baselga, E de Azambuja
AIM: To determine the value of mammography and breast ultrasound (US) in predicting outcomes in HER2 positive breast cancer patients (pts) within Neo-ALTTO trial. PATIENTS AND METHODS: Mammography and US were required at baseline, week 6 and surgery. Two independent blinded investigators reviewed the measurements and assigned the corresponding response category. Pts showing complete or partial response according to RECIST (v1.1) were classified as responders. The association between imaging response at week 6 or prior to surgery was evaluated with respect to pathological complete response (pCR) and event-free Survival (EFS)...
December 8, 2017: European Journal of Cancer
https://www.readbyqxmd.com/read/29227553/fluorescence-lifetime-imaging-of-a-caspase-3-apoptosis-reporter
#10
Johanna M Buschhaus, Anne E Gibbons, Kathryn E Luker, Gary D Luker
Caspase-3 is a proteolytic enzyme that functions as a key effector in apoptotic cell death. Determining activity of caspase-3 provides critical information about cancer cell viability and response to treatment. To measure apoptosis in intact cells and living mice, a fluorescence imaging reporter that detects caspase-3 activity by Förster resonance energy transfer (FRET) was used. Changes in FRET by fluorescence lifetime imaging microscopy (FLIM) were measured. Unlike FRET measurements based on fluorescence intensity, lifetime measurements are independent of reporter concentration and scattering of light in tissue, making FLIM a robust method for imaging in 3D environments...
December 11, 2017: Current Protocols in Cell Biology
https://www.readbyqxmd.com/read/29226849/assessment-of-global-and-local-region-based-bilateral-mammographic-feature-asymmetry-to-predict-short-term-breast-cancer-risk
#11
Yane Li, Ming Fan, Hu Cheng, Peng Zhang, Bin Zheng, Lihua Li
This study aims to develop and test a new imaging marker-based short-term breast cancer risk prediction model. An age-matched dataset of 566 screening mammography cases was used. All "prior" images acquired in the two screening series were negative, while in the "current" screening images, 283 cases were positive for cancer and 283 cases remained negative. For each case, two bilateral cranio-caudal view mammograms acquired from the "prior" negative screenings were selected and processed by a computer-aided image processing scheme, which segmented the entire breast area into 9 strip-based local regions, extracted the element regions using difference of Gaussian filters, and computed both global- and local-based bilateral asymmetrical image features...
December 11, 2017: Physics in Medicine and Biology
https://www.readbyqxmd.com/read/29226682/first-evaluation-of-radioiodinated-flavonoids-as-necrosis-avid-agents-and-application-in-the-early-assessment-of-tumor-necrosis
#12
Jiajia Liang, Ziping Sun, Dongjian Zhang, Qiaomei Jin, Lingqiao Cai, Lin Ma, Wei Liu, Yicheng Ni, Jian Zhang, Zhiqi Yin
A rapid and accurate identification of necrotic tissues is of great importance to define disease severity, predict prognosis and monitor responses to therapies. To seek necrosis-avid agents with clinically translational potential, we first evaluated the necrosis avidity of flavonoids in rodent models of muscular, myocardial and tumoral necrosis. In this study, the necrosis avidity of eight radioiodinated 5,7-dihydroxyflavones was tested by ex vivo gamma counting, histochemical staining, and autoradiography in mouse models of ethanol-induced muscular necrosis...
December 11, 2017: Molecular Pharmaceutics
https://www.readbyqxmd.com/read/29224890/advances-in-breast-intervention-where-are-we-now-and-where-should-we-be
#13
REVIEW
W B G Sanderink, R M Mann
In the past four decades, a variety of methods for minimal or non-invasive diagnosis and treatment of breast cancer have been introduced. Although breast imaging has become more and more specific for diagnosis, specimen biopsy with histopathological confirmation is still necessary. Core-needle biopsy under ultrasound guidance is the appropriate first choice for the diagnosis of most lesions. Fine-needle aspiration is of interest for identification of the presence of metastatic disease in abnormal lymph nodes...
December 7, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29222002/impact-of-simulation-based-training-on%C3%A2-radiology-trainee-education-in-ultrasound-guided-breast-biopsies
#14
Ashley A Roark, Lilian O Ebuoma, Tamara Ortiz-Perez, Karla A Sepulveda, Frederick J Severs, Tao Wang, Ana Paula Benveniste, Emily L Sedgwick
PURPOSE: The aim of this study is to determine the impact of a simulation-based ultrasound-guided (USG) breast biopsy training session on radiology trainee procedural knowledge, comfort levels, and overall procedural confidence and anxiety. METHODS: Twenty-one diagnostic radiology residents from a single academic institution were recruited to participate in an USG breast biopsy training session. The residents filled out a questionnaire before and after the training session...
December 5, 2017: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29221896/correlative-imaging-reveals-physiochemical-heterogeneity-of-microcalcifications-in-human-breast-carcinomas
#15
Jennie A M R Kunitake, Siyoung Choi, Kayla X Nguyen, Meredith M Lee, Frank He, Daniel Sudilovsky, Patrick G Morris, Maxine S Jochelson, Clifford A Hudis, David A Muller, Peter Fratzl, Claudia Fischbach, Admir Masic, Lara A Estroff
Microcalcifications (MCs) are routinely used to detect breast cancer in mammography. Little is known, however, about their materials properties and associated organic matrix, or their correlation to breast cancer prognosis. We combine histopathology, Raman microscopy, and electron microscopy to image MCs within snap-frozen human breast tissue and generate micron-scale resolution correlative maps of crystalline phase, trace metals, particle morphology, and organic matrix chemical signatures within high grade ductal carcinoma in situ (DCIS) and invasive cancer...
December 5, 2017: Journal of Structural Biology
https://www.readbyqxmd.com/read/29221721/factors-affecting-the-precision-of-lesion-sizing-with-contrast-enhanced-spectral-mammography
#16
M Del Mar Travieso-Aja, P Naranjo-Santana, C Fernández-Ruiz, W Severino-Rondón, D Maldonado-Saluzzi, M Rodríguez Rodríguez, V Vega-Benítez, O P Luzardo
AIM: To evaluate the precision of the pre-surgical measurement of the size of breast cancer by contrast-enhanced spectral mammography (CESM). MATERIAL AND METHODS: This was a retrospective study of 204 breast cancers. Variables related to tumour biology and anthropometric variables were recorded and considered when evaluating the efficacy of CESM in predicting tumour size. Microscopic measurement of the largest diameter of the tumour at pathology was chosen as the reference standard...
December 5, 2017: Clinical Radiology
https://www.readbyqxmd.com/read/29221676/prospective-medical-analysis-of-radiation-therapist-image-repositioning-during-image-guided-radiotherapy
#17
O Lauche, F Castan, H de Forges, C Guillaumon, S Gourgou, P Fenoglietto, N Aillères, D Azria, O Riou
PURPOSE: Radiation oncologists are responsible for deciding which day-to-day variations are acceptable or not in the treatment setup. However, properly qualified and trained radiation therapists might be capable to perform image registration. We evaluated in our centre the capability and accuracy of radiation therapists to validate positioning images in a prospective study. METHODS AND PATIENTS: A total of 84 patients treated for prostate, head and neck, lung or breast cancer was prospectively and randomly included from July 2011 to July 2013 in radiotherapy unit of our institution...
December 5, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/29220208/changing-utilization-of-noninvasive-diagnostic-imaging-over-2-decades-an-examination-family-focused-analysis-of-medicare-claims-using-the-neiman-imaging-types-of-service-categorization-system
#18
David A Rosman, Richard Duszak, Wenyi Wang, Danny R Hughes, Andrew B Rosenkrantz
OBJECTIVE: The objective of our study was to use a new modality and body region categorization system to assess changing utilization of noninvasive diagnostic imaging in the Medicare fee-for-service population over a recent 20-year period (1994-2013). MATERIALS AND METHODS: All Medicare Part B Physician Fee Schedule services billed between 1994 and 2013 were identified using Physician/Supplier Procedure Summary master files. Billed codes for diagnostic imaging were classified using the Neiman Imaging Types of Service (NITOS) coding system by both modality and body region...
December 8, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29220097/invasive-mucinous-carcinoma-of-the-breast-and-response-patterns-after-neoadjuvant-chemotherapy-nac
#19
Susan Fineberg, Rosemarie Didonato, Nella Shapiro, Tova Koenigsberg, Timothy D'Alfonso, Shabnam Jaffer
AIMS: Neoadjuvant chemotherapy (NAC) is often used to treat localized invasive breast cancer. Invasive mucinous carcinoma (IMC) is considered to be an indolent form of invasive breast cancer and is rarely treated with NAC. We report the largest series of IMC treated with NAC, and report a characteristic, but not well recognized, pattern of pathologic response. METHODS AND RESULTS: Our series included 7 patients with IMC treated with NAC. Three patients presented with locally advanced disease, three patients had tumors that were Her/2Neu positive, and four patients had tumors with admixed mucinous and micropapillary features...
December 8, 2017: Histopathology
https://www.readbyqxmd.com/read/29220095/digital-image-analysis-of-ki67-in-hot-spots-is-superior-to-both-manual-ki67-and-mitotic-counts-in-breast-cancer
#20
Gustav Stålhammar, Stephanie Robertson, Lena Wedlund, Michael Lippert, Mattias Rantalainen, Jonas Bergh, Johan Hartman
AIMS: During pathological examination of breast tumours, proliferative activity is routinely evaluated by a count of mitoses. Adding immunohistochemical stains of Ki67 provides extra prognostic and predictive information. However, currently used methods for these evaluations suffer from imperfect reproducibility. It is still unclear whether analysis of Ki67 should be performed in hot spots, in the tumour periphery or as an average of the whole tumour section. In this paper, we compare the clinical relevance of mitoses, Ki67 and Phosphohistone H3 in two cohorts of primary breast cancer specimens (total n=294)...
December 8, 2017: Histopathology
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