Macroscopic Classification of Early Barrett's Neoplasia in 416 Lesions: Prospective Data From the Wiesbaden Barrett's Cancer Register

Invasive treatment modalities for severe chronic twin-to-twin transfusion syndrome (TTTS), such as fetoscopic laser coagulation of communicating vessels, have revived the need for detailed studies of placental angioar-chitecture. We describe a practical placental vascular injection technique using alcohol-resistant tissue-staining dyes. Injection of color-coded gelatin-dye mixtures effectively delineated the intertwin vasculature, and allowed unequivocal macroscopic classification of vascular communications as artery-to-artery, vein-to-vein, or deep artery–to-vein anastomoses. The existence of deep artery–to-vein anastomoses was further confirmed by light microscopic demonstration of venous dye of one twin and arterial dye of the opposite twin within the same stem villus. Furthermore, the injection technique allowed determination of the caliber of the anastomoses, the direction of the artery-to-vein anastomoses, and the relative vascular territory of each twin. Documenting the vascular communications in monochorionic twin placentas with and without TTTS may enhance our understanding of the pathogenesis of chronic TTTS. Correlating the anastomotic patterns and location of the laser coagulation scars with post-ablation outcome will aid in the design of rational therapeutic methods for this often lethal condition.

Download Full-text

Macroscopic classification of superficial neoplastic lesions of the oral mucosa: A preliminary study

European Journal of Surgical Oncology ◽

10.1016/j.ejso.2007.02.032 ◽

2008 ◽

Vol 34 (1) ◽

pp. 100-106 ◽

Cited By ~ 1

Author(s):

S. Fedele ◽

L. Lo Russo ◽

C. Mignogna ◽

S. Staibano ◽

S.R. Porter ◽

...

Keyword(s):

Oral Mucosa ◽

Macroscopic Classification ◽

Neoplastic Lesions ◽

Preliminary Study

Download Full-text

Analysis of smoking behaviour in patients with peritonsillar abscess: a prospective, matched case–control study

The Journal of Laryngology & Otology ◽

10.1017/s0022215118001585 ◽

2018 ◽

Vol 132 (10) ◽

pp. 872-874 ◽

Cited By ~ 1

Author(s):

D Schwarz ◽

P Wolber ◽

M Balk ◽

J C Luers

Keyword(s):

Epidemiological Studies ◽

Smoking Behaviour ◽

Peritonsillar Abscess ◽

Control Group ◽

Robert Koch Institute ◽

Prospective Data ◽

Matched Case ◽

And Gender ◽

Control Study

AbstractObjectiveSmoking is purported to increase the risk of peritonsillar abscess formation, but prospective data are needed to confirm this hypothesis. This prospective study aimed to identify this correlation.MethodsFifty-four patients with peritonsillar abscess were prospectively asked about their smoking behaviour using a questionnaire that was designed and approved by the Robert Koch Institute (Berlin, Germany) to analyse smoking behaviour in epidemiological studies. Afterwards, a consecutive control group (without peritonsillar abscess), matched in terms of age and gender, was surveyed using the same questionnaire. A classification of smoker, former smoker and non-smoker was made, and the numbers of pack-years were calculated and compared.ResultsStatistical analysis of both groups revealed a significant correlation between peritonsillar abscess and smoking experience (p= 0.025). Moreover, there were significantly fewer non-smokers in the non-peritonsillar abscess group (p= 0.04). The number of pack-years was higher in the peritonsillar abscess group (p= 0.037).ConclusionThere is a statistically significant association between peritonsillar abscess and smoking.

Download Full-text

Application of the LDA Model to Semantic Annotation of Web-based English Educational Resources

Journal of Web Engineering ◽

10.13052/jwe1540-9589.2047 ◽

2021 ◽

Author(s):

Wei Du ◽

Haiyan Zhu ◽

Teeraporn Saeheaw

Keyword(s):

Topic Modeling ◽

Basic Education ◽

Semantic Annotation ◽

Experimental Results ◽

Educational Resources ◽

Metadata Standard ◽

Web Based ◽

Teaching Content ◽

Macroscopic Classification

Based on the LDA model, this paper builds a three-layer semantic model of Web English educational resources “document-topic-keyword”, models the semantic topics of resource documents, and obtains the semantic topics and keywords of document resources as the semantic labels of resources. The experimental results show that document LDA topic modeling is beneficial to the macroscopic classification of Web English educational resources. The experimental results show that LDA topic modeling of documents is useful for macroscopic cataloging of Web English educational resources, highlighting teaching priorities, difficulties, and interrelationships, while LDA modeling of teaching topics with the same teaching content expands the metadata generation method of resource description based on the basic education metadata standard and provides more information about the inherent characteristics of resources. The semantic information can be used to mine the semantic thematic features and detailed differences inherent in the resources, and the final performance analysis verifies the parallel computing advantages of the LDA model in a big data environment.

Download Full-text

The Importance of the Macroscopic Classification of Colorectal Neoplasms

Gastrointestinal Endoscopy Clinics of North America ◽

10.1016/j.giec.2010.03.014 ◽

2010 ◽

Vol 20 (3) ◽

pp. 461-469 ◽

Cited By ~ 4

Author(s):

Yasushi Sano ◽

Mineo Iwadate

Keyword(s):

Colorectal Neoplasms ◽

Macroscopic Classification

Download Full-text

IS THE MACROSCOPIC CLASSIFICATION OF FLINT USEFUL? A PETROARCHAEOLOGICAL ANALYSIS AND CHARACTERIZATION OF FLINT RAW MATERIALS FROM THE IBERIAN NEOLITHIC MINE OF CASA MONTERO

Archaeometry ◽

10.1111/j.1475-4754.2008.00403.x ◽

2009 ◽

Vol 51 (2) ◽

pp. 175-196 ◽

Cited By ~ 29

Author(s):

M. A. BUSTILLO ◽

N. CASTAÑEDA ◽

M. CAPOTE ◽

S. CONSUEGRA ◽

C. CRIADO ◽

...

Keyword(s):

Raw Materials ◽

Macroscopic Classification

Download Full-text

Comparison of Contrast-Enhanced Ultrasound and Gadolinium-Ethoxybenzyl-Diethylenetriamine Pentaacetic Acid-Enhanced MRI for the Diagnosis of Macroscopic Type of Hepatocellular Carcinoma

Digestive Diseases ◽

10.1159/000448855 ◽

2016 ◽

Vol 34 (6) ◽

pp. 679-686 ◽

Cited By ~ 6

Author(s):

Takayuki Iwamoto ◽

Yasuharu Imai ◽

Sachiyo Kogita ◽

Takumi Igura ◽

Yoshiyuki Sawai ◽

...

Keyword(s):

Hepatocellular Carcinoma ◽

Diagnostic Performance ◽

Characteristic Curve ◽

Hepatobiliary Phase ◽

Contrast Enhanced Ultrasound ◽

Enhanced Mri ◽

Contrast Enhanced ◽

Macroscopic Classification ◽

Diethylenetriamine Pentaacetic Acid

Objective: We compared the efficacy of contrast-enhanced ultrasound sonography (CEUS) with sonazoid and gadolinium-ethoxybenzyl-diethylenetriamine pentaacetic acid (Gd-EOB-DTPA)-enhanced MRI for the assessment of macroscopic classification of nodular hepatocellular carcinoma (HCC). Methods: Seventy-seven consecutive patients with 79 surgically resected HCCs who underwent both preoperative CEUS and Gd-EOB-DTPA-enhanced MRI were enrolled in this retrospective study. Based on the macroscopic diagnosis of resected specimens, nodules were categorized into the simple nodular (SN) and non-SN type HCC. Two hepatologists independently assessed image datasets of the post-vascular phase of CEUS and hepatobiliary phase of Gd-EOB-DTPA-enhanced MRI to compare their diagnostic performance. Results: Gd-EOB-DTPA-enhanced MRI enabled the evaluation of macroscopic classification in a significantly larger number of nodules than CEUS (78/79 (98.7%) vs. 70/79 (88.6%), p < 0.05). Of 70 nodules that could be evaluated by both modalities, 41 and 29 nodules were pathologically categorized as SN and non-SN, respectively. The areas under the receiver operating characteristic curve (AUC) for non-SN did not differ between CEUS and Gd-EOB-DTPA-enhanced MRI (reader 1: 0.748 for CEUS, 0.808 for MRI; reader 2: 0.759 for CEUS, 0.787 for MRI). The AUC of combined CEUS and Gd-EOB-DTPA-enhanced MRI for SN HCC was 0.855 (reader 1) and 0.824 (reader 2), indicating higher AUC values for the combined modalities. Conclusions: The diagnostic performance for macroscopic classification of nodular HCC of CEUS was comparable with that of Gd-EOB-DTPA-enhanced MRI, although some HCCs could not be evaluated by CEUS owing to lower detectability. The combination of the 2 modalities had a more accurate diagnostic performance.

Download Full-text

A macroscopic classification of the embryonic development of the one-sided livebearer Jenynsia multidentata (Teleostei: Anablepidae)

Neotropical Ichthyology ◽

10.1590/1982-0224-20160170 ◽

2017 ◽

Vol 15 (4) ◽

Cited By ~ 1

Author(s):

Nathalia C. López-Rodríguez ◽

Cíntia M. de Barros ◽

Ana Cristina Petry

Keyword(s):

Embryonic Development ◽

Dry Weight ◽

The Body ◽

Stage 4 ◽

Macroscopic Classification ◽

Body Pigmentation ◽

The One ◽

Stage 1 ◽

Jenynsia Multidentata

ABSTRACT This study proposes eight stages according to the main discernible changes recorded throughout the embryonic development of Jenynsia multidentata. The development of morphological embryo structures, pigmentation, and changes in tissues connecting mother and embryo were included in the stage characterization. From the fertilized egg (Stage 1), an embryo reaches the intermediary stages when presenting yolk syncytial layer (Stage 2), initial pigmentation of the outer layers of the retina and dorsal region of the head (Stage 3), and the sprouting of the caudal (Stage 4), dorsal and anal fins (Stage 5). During the later stages, the ovarian folds enter the gills, and the body pigmentation becomes more intense (Stage 6), the body becomes elongated (Stage 7), and there is a greater intensity in body pigmentation and increased muscle mass (Stage 8). The dry weight of the batches varied between 0.6 ± 0.3 mg (Stage 3) to 54.6 ± 19.7 mg (Stage 8), but the dry weight of the maternal-embryonic connecting tissues remained almost constant. After controlling the effect of those reproductive tissues, the gain in dry weight of the batches throughout development increased exponentially from Stage 6, reflecting the increase in size and weight of the embryos due to matrotrophy.

Download Full-text