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Article: Effectiveness of Computed Tomography in the Diagnosis of Novel Coronavirus-2019.

Yurdaisik, Isil

2020 Volume 12, Issue 5, Page(s) e8134

Abstract: Coronaviruses (CoV) belong to the coronavirus genus of the coronaviridae family. All CoVs are pleomorphic RNA viruses containing crown-like peplomers of 80-160 nm in size. This virus is a zoonotic pathogen seen with a wide range of clinical features from ...

Abstract	Coronaviruses (CoV) belong to the coronavirus genus of the coronaviridae family. All CoVs are pleomorphic RNA viruses containing crown-like peplomers of 80-160 nm in size. This virus is a zoonotic pathogen seen with a wide range of clinical features from asymptomatic state to intensive care in humans. So far, seven human coronaviruses have been identified with the last one being Coronavirus-2019 (COVID-19). These pathogens typically lead to mild disease, but SARS and MERS type coronaviruses have caused severe respiratory disease and even mortality within the last 20 years. COVID-19 virus has rapidly spread worldwide after China and is continuing to cause huge economical and social impacts. Given the scarcity of resources including healthcare staff, hospital capacities, test kits, etc., timely diagnosis and treatment of this virus are of paramount importance. However, there is no vaccination or drug developed for the treatment of this disease up to today. Because the spreading rate of the virus is very high worldwide and there is no definitive treatment, diagnosis becomes even more important. The objective of this review is to evaluate the use of chest computed tomography, one of the commonly used radiologic imaging modalities, in the diagnosis of COVID-19 in light with the current literatüre.
Keywords	covid19
Language	English
Publishing date	2020-05-15
Publishing country	United States
Document type	Journal Article ; Review
ZDB-ID	2747273-5
ISSN	2168-8184
ISSN	2168-8184
DOI	10.7759/cureus.8134
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Article ; Online: Analysis of the Most Viewed First 50 Videos on YouTube about Breast Cancer.

Yurdaisik, Isil

BioMed research international

2020 Volume 2020, Page(s) 2750148

Abstract: Objective: Breast cancer is the most common cancer type among women worldwide. Today, health consumers search the Internet to gain health information about many diseases including breast cancer. YouTube™ is the second most commonly used website on the ... ...

Abstract	Objective: Breast cancer is the most common cancer type among women worldwide. Today, health consumers search the Internet to gain health information about many diseases including breast cancer. YouTube™ is the second most commonly used website on the Internet. However, the quality and accuracy of health-related YouTube™ videos are controversial. The objective of this study was to investigate the quality and accuracy of breast cancer-related videos on YouTube™. Results: Of all videos, 14% were uploaded by physicians, 26% by health channels, 20% by patients, 10% by news channels, 2% by herbalists, 2% by blog channels, and 2% by nonprofit activism channels. The mean DISCERN score was calculated as 26.70 ± 10.99 and the mean JAMA score as 2.23 ± 0.97. The mean VPI value, which was calculated to determine the popularity of the videos, was found as 94.10 ± 4.48. A strong statistically significant correlation was found between the two observers in terms of both DISCERN and JAMA scores. There was an excellent agreement between the two observers. Conclusion: The overall quality of the viewed videos was found as poor. Healthcare professionals should be encouraged to upload breast cancer-related videos with accurate information to promote patients for screening and direct them appropriately.
MeSH term(s)	Breast Neoplasms ; Consumer Health Information/standards ; Consumer Health Information/statistics & numerical data ; Health Personnel/statistics & numerical data ; Humans ; Information Dissemination/methods ; Social Media ; Video Recording/standards ; Video Recording/statistics & numerical data
Language	English
Publishing date	2020-05-25
Publishing country	United States
Document type	Journal Article
ZDB-ID	2698540-8
ISSN	2314-6141 ; 2314-6133
ISSN (online)	2314-6141
ISSN	2314-6133
DOI	10.1155/2020/2750148
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Article ; Online: Comparison of two-dimensional shear wave elastography and point shear wave elastography techniques with magnetic resonance findings in detection of patellar tendinopathy.

Yurdaışık, Işıl

Eklem hastaliklari ve cerrahisi = Joint diseases & related surgery

2019 Volume 30, Issue 3, Page(s) 275–281

Abstract: Objectives: This study aims to evaluate the accuracy of point shear wave elastography (pSWE) and two-dimensional shear wave elastography (SWE) techniques in the diagnosis of patellar tendinopathy in comparison with magnetic resonance imaging (MRI).: ... ...

Abstract	Objectives: This study aims to evaluate the accuracy of point shear wave elastography (pSWE) and two-dimensional shear wave elastography (SWE) techniques in the diagnosis of patellar tendinopathy in comparison with magnetic resonance imaging (MRI). Patients and methods: The study included 77 patients (32 males, 45 females; mean age 47.1±9.47 years; range, 33 to 65 years) referred to our clinic for MRI and diagnosed with patellar tendinopathy. Patients' demographic data such as age and gender, and patellar tendon grades found on MRI, SWE and pSWE values were recorded. Results: Patellar tendinopathies were found as grade I in 20, grade II in 37, and grade III in 20 patients. The mean SWE value was 83.83±34.27 kPa, while the mean pSWE value was 79.25±33.75 kPa. There was a strong correlation between SWE and pSWE values. Conclusion: Shear wave elastography and pSWE techniques can be safely used as non-invasive and quantitative imaging modalities in detection of patellar tendinopathy. Our results indicated that SWE and pSWE were helpful to confirm stiffness of patellar tendon in patients with patellar tendinopathy.
MeSH term(s)	Adult ; Aged ; Elasticity Imaging Techniques/methods ; Female ; Humans ; Magnetic Resonance Spectroscopy ; Male ; Middle Aged ; Patellar Ligament/diagnostic imaging ; Reproducibility of Results ; Tendinopathy/diagnostic imaging
Language	English
Publishing date	2019-10-24
Publishing country	Turkey
Document type	Comparative Study ; Journal Article
ISSN	1309-0313
ISSN (online)	1309-0313
DOI	10.5606/ehc.2019.70076
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Article ; Online: Analysis of the Most Viewed First 50 Videos on YouTube about Breast Cancer

Isil Yurdaisik

BioMed Research International, Vol

2020 Volume 2020

Abstract: Objective. Breast cancer is the most common cancer type among women worldwide. Today, health consumers search the Internet to gain health information about many diseases including breast cancer. YouTube™ is the second most commonly used website on the ... ...

Abstract	Objective. Breast cancer is the most common cancer type among women worldwide. Today, health consumers search the Internet to gain health information about many diseases including breast cancer. YouTube™ is the second most commonly used website on the Internet. However, the quality and accuracy of health-related YouTube™ videos are controversial. The objective of this study was to investigate the quality and accuracy of breast cancer-related videos on YouTube™. Material and Methods. “Breast cancer” keyword was entered into YouTube™ search bar, and after excluding advertisement, duplicate, and non-English videos, the first most viewed 50 videos were analyzed. Videos’ length, the number of views, comments, likes, and dislikes were recorded. DISCERN and JAMA scores and Video Power Index (VPI) values of the videos were calculated. All videos were evaluated by two independent radiologists experienced on breast cancer. The correlation between the two observers was also analyzed. Results. Of all videos, 14% were uploaded by physicians, 26% by health channels, 20% by patients, 10% by news channels, 2% by herbalists, 2% by blog channels, and 2% by nonprofit activism channels. The mean DISCERN score was calculated as 26.70±10.99 and the mean JAMA score as 2.23±0.97. The mean VPI value, which was calculated to determine the popularity of the videos, was found as 94.10±4.48. A strong statistically significant correlation was found between the two observers in terms of both DISCERN and JAMA scores. There was an excellent agreement between the two observers. Conclusion. The overall quality of the viewed videos was found as poor. Healthcare professionals should be encouraged to upload breast cancer-related videos with accurate information to promote patients for screening and direct them appropriately.
Keywords	Medicine ; R
Subject code	616
Language	English
Publishing date	2020-01-01T00:00:00Z
Publisher	Hindawi Limited
Document type	Article ; Online
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Article ; Online: High riding jugular bulb: prevalence and significance in asymptomatic children.

Aksoy, Suleyman Hilmi / Yurdaisik, Isil

Acta radiologica (Stockholm, Sweden : 1987)

2022 Volume 64, Issue 2, Page(s) 792–797

Abstract: Background: High riding jugular bulb (HJB) is a vascular abnormality characterized by the higher-than-normal location of the jugular bulb.: Purpose: To evaluate the frequency of HJB among children who underwent cranial computed tomography (CT) mostly ...

Abstract	Background: High riding jugular bulb (HJB) is a vascular abnormality characterized by the higher-than-normal location of the jugular bulb. Purpose: To evaluate the frequency of HJB among children who underwent cranial computed tomography (CT) mostly because of head trauma. Material and methods: Patient demographics such as age, sex, indication of cranial CT, diameters of the right and left JB, and presence and laterality of HJB were recorded and analyzed. Patients were grouped as with HJB and without HJB; the variables were compared between these two groups. Patients were also divided into age groups as 0-1 month, 1-12 months, 12-24 months, and >24 months and the findings. The Shapiro-Wilk test, histograms, and Q-Q, Mann-Whitney Results: In total, CT images of 194 patients (388 JBs) were evaluated. Overall, 42.8% of children had HJB. Only three children had bilateral HJB. Of all JBs, 22.2% were high riding. Children who did not have HJB were significantly younger compared to children with HJB ( Conclusion: A jugular bulb could be identified in all age groups, including newborns. The earliest age of HJB detection was eight months. Overall, 42% of the patients had HJB, which increased by age.
MeSH term(s)	Infant, Newborn ; Infant ; Humans ; Child ; Prevalence ; Skull ; Tomography, X-Ray Computed ; Jugular Veins/diagnostic imaging
Language	English
Publishing date	2022-03-18
Publishing country	England
Document type	Journal Article
ZDB-ID	105-3
ISSN	1600-0455 ; 0284-1851 ; 0349-652X
ISSN (online)	1600-0455
ISSN	0284-1851 ; 0349-652X
DOI	10.1177/02841851221085674
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Article ; Online: Co-occurrence of vertebral artery hypoplasia and high jugular bulb in patients undergoing cranial magnetic resonance imaging.

Aksoy, Suleyman Hilmi / Yurdaisik, Isil

Acta neurologica Belgica

2021 Volume 122, Issue 2, Page(s) 369–375

Abstract: We aimed to assess the frequency and coexistence of vertebral artery hypoplasia (VAH) and high jugular bulb (HJB) in subjects who underwent cranial magnetic resonance imaging (MRI) for diverse indications. This was a retrospective study in which 2184 ... ...

Abstract	We aimed to assess the frequency and coexistence of vertebral artery hypoplasia (VAH) and high jugular bulb (HJB) in subjects who underwent cranial magnetic resonance imaging (MRI) for diverse indications. This was a retrospective study in which 2184 consecutive patients who underwent cranial MRI were screened. Age, sex, and reasons for ordering cranial MRI were obtained from hospital database. Nineteen patients were excluded from the study. We defined VAH as a vertebral artery whose diameter was smaller than 2 mm with an asymmetry ratio of ≤ 1:1.7. HJB was defined as the jugular bulb lying higher than the inferior portion of the internal acoustic meatus. Pearson's χ
MeSH term(s)	Adult ; Female ; Humans ; Jugular Veins/diagnostic imaging ; Magnetic Resonance Imaging ; Retrospective Studies ; Stroke/epidemiology ; Vertebral Artery/diagnostic imaging ; Vertebrobasilar Insufficiency
Language	English
Publishing date	2021-02-11
Publishing country	Italy
Document type	Journal Article
ZDB-ID	127315-2
ISSN	2240-2993 ; 0300-9009
ISSN (online)	2240-2993
ISSN	0300-9009
DOI	10.1007/s13760-021-01619-z
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Article: Accuracy of Multi-echo Dixon Sequence in Quantification of Hepatic Steatosis.

Yurdaisik, Isil / Nurili, Fuad

Cureus

2020 Volume 12, Issue 2, Page(s) e7103

Abstract: Objective Today, a biopsy is the gold standard in the diagnosis of non-alcoholic fatty liver. However, a biopsy is an invasive technique, limited to the sample taken, and it may lead to misdiagnosis. Therefore, novel noninvasive options are needed. The ... ...

Abstract	Objective Today, a biopsy is the gold standard in the diagnosis of non-alcoholic fatty liver. However, a biopsy is an invasive technique, limited to the sample taken, and it may lead to misdiagnosis. Therefore, novel noninvasive options are needed. The objective of this study was to investigate the accuracy of magnetic resonance (MR) Dixon sequence and elastography using magnetic resonance spectroscopy (MRS) as a reference in the quantification of hepatic steatosis. Methods A total of 60 patients were included in the study. All patients underwent magnetic resonance imaging (MRI), MRS, and elastography in order to quantify hepatosteatosis. MRI and MRS imaging studies were performed using MR Dixon and high-speed T2-corrected multiple-echo 1H-MRS sequence (HISTO) sequences, respectively, in order to calculate proton density fat fraction (PDFF) values. Results The mean MRI-PDFF value with the MRS region of interest (ROI) was found as 9.4% ± 12.1%. The mean MRS-PDFF was found as 8.9% ± 11.3%. No statistically significant difference was found between MRS-PDFF and MRI-PDFF values measured in ROI (p < 0.005). The correlation between MRS-PDFF and MRI-PDFF was examined with Spearman's correlation analysis. Accordingly, there was an excellent correlation between MRS and MRI values measured in ROI (r ≥ 0.8, p < 0.001). Sensitivity, specificity, positive predictive value, and negative predictive value were calculated as 96%, 100%, 89.5%, and 92.6%, respectively, for MRI-PDFF in predicting hepatic steatosis for the same ROI localization with MRS. The optimum cut-off value of MRS-PDFF in predicting hepatic steatosis was found as 5.3% using the same ROI localization with MRS. Conclusion The results of this study indicated an excellent correlation between MRI-PDFF and MRS-PDFF. The multi-echo Dixon MRI technique seems a promising alternative method in the detection of non-alcoholic fatty liver disease.
Language	English
Publishing date	2020-02-25
Publishing country	United States
Document type	Journal Article
ZDB-ID	2747273-5
ISSN	2168-8184
ISSN	2168-8184
DOI	10.7759/cureus.7103
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Article ; Online: Ionizing Radiation Exposure due to Medical Imaging in Hematopoietic Stem Cell Transplant Recipients

Süleyman Hilmi Aksoy / Işıl Yurdaışık / Ayşen Timurağaoğlu

İstanbul Medical Journal, Vol 23, Iss 2, Pp 119-

2022 Volume 124

Abstract: Introduction:The study aimed to quantify the ionizing radiation exposure of patients with hematologic malignancy who underwent hematopoietic stem cell transplantation (HSCT).Methods:This was a retrospective evaluation of the adult patients who underwent ... ...

Abstract	Introduction:The study aimed to quantify the ionizing radiation exposure of patients with hematologic malignancy who underwent hematopoietic stem cell transplantation (HSCT).Methods:This was a retrospective evaluation of the adult patients who underwent allogeneic or autologous HSCT for hematologic malignities in a single center between January 2016 and September 2020. All radiological imaging procedures involving ionizing radiation screened study participants. The study period covered both the pre- and post-transplantation phases. A typical cumulative effective dose (CED) was used to calculate the exposed ionizing radiation in units of millisieverts (mSv).Results:A total of 120 patients (females 38.3%, mean age: 52.2±15.6 years) were included. Autologous HSCT was performed in 66 patients (55%), whereas 54 patients (45%) underwent allogeneic HSCT. Patients with acute myeloid leukemia and acute lymphoblastic leukemia comprised 53.7% and 31.5% of allogeneic HSCT, respectively. Autologous HSCT was mainly performed in patients with multiple myeloma (47%) and non-hodgkin lymphoma (34.8%). The median total CED was 11.85 mSv (interquartile range: 4.08-19.78). The median CED of allogeneic HSCT patients was significantly higher than that of the autologous HSCT group. The vast majority of the total CED (92.3%) comes from computed tomography imaging procedures. In the entire groups, 92 patients (76.7%) received a low dose (<20 mSv), whereas 26 patients (21.7%) received a moderate dose (>20-50 mSv) ionizing radiation.Conclusion:One-third of all HSCT patients received a moderate ionizing radiation dose. Allogeneic HSCT patients had significantly higher median CED than autologous counterparts.
Keywords	computed tomography ; cumulative effective dose ; ionizing radiation ; radiation exposure ; hematopoietic stem cell transplantation ; Medicine ; R
Subject code	610 ; 616
Language	English
Publishing date	2022-05-01T00:00:00Z
Publisher	Galenos Yayinevi
Document type	Article ; Online
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Article ; Online: The effects of stone density on surgical outcomes of retrograde intrarenal stone surgery.

Aksoy, Suleyman Hilmi / Cakiroglu, Basri / Tas, Tuncay / Yurdaisik, Isil

The British journal of radiology

2022 Volume 95, Issue 1135, Page(s) 20220229

Abstract: Objective: Several pre-operative parameters have been studied to estimate stone-free rate (SFR) following retrograde intrarenal surgery (RIRS) procedures. The objective of this study was to evaluate the effects of stone density on surgical outcomes of ... ...

Abstract	Objective: Several pre-operative parameters have been studied to estimate stone-free rate (SFR) following retrograde intrarenal surgery (RIRS) procedures. The objective of this study was to evaluate the effects of stone density on surgical outcomes of RIRS. Methods: This retrospective study included 30 stone-free patients (Group SF) and 30 patients with residual fragments (Group RF). Patients' age and gender, laterality, non-contrast CT findings, including size and density of the kidney stones, infundibular pelvic angle (IPA), operational time, and post-operative pain were recorded and compared between the two groups. The stone density was measured by free hand region of interest (ROI) determination coincident with the stone borders and expressed as Hounsfield units (HUs). Results: The rate of single stones was significantly higher in Group SF compared to Group RF ( Conclusion: This study revealed that stone density as measured as HU affects the treatment outcomes with RIRS procedure and the mean density is significantly higher in patients with residual stone fragments. Advances in knowledge: Studies about the effects of HUs on stone-free rate are limited in the literature. Stone density affects the treatment outcomes with RIRS procedure and the mean density is significantly higher in patients with residual stone fragments.
MeSH term(s)	Humans ; Kidney/surgery ; Kidney Calculi/diagnostic imaging ; Kidney Calculi/surgery ; Operative Time ; Retrospective Studies ; Treatment Outcome
Language	English
Publishing date	2022-05-05
Publishing country	England
Document type	Journal Article
ZDB-ID	2982-8
ISSN	1748-880X ; 0007-1285
ISSN (online)	1748-880X
ISSN	0007-1285
DOI	10.1259/bjr.20220229
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Article ; Online: Evaluation of the Correlation Between Breast Artery Calcification and Coronary Artery Calcium Scores in Predicting the Risk for Cardiovascular Disease

Işıl Yurdaışık / Fuad Nurili

Eurasian Journal of Emergency Medicine, Vol 19, Iss 3, Pp 136-

2020 Volume 141

Abstract: Aim:Coronary artery calcium (CAC) score is a scoring system used in the stratification of coronary risks. Breast artery calcification (BAC) is a type of medial artery calcification that can be visualized using mammography and is also known as ... ...

Abstract	Aim:Coronary artery calcium (CAC) score is a scoring system used in the stratification of coronary risks. Breast artery calcification (BAC) is a type of medial artery calcification that can be visualized using mammography and is also known as arteriosclerosis. It has been reported that a significant correlation exists between BAC and CAC and that the presence of BAC improves the ability of detecting women with CAC. This study aimed to evaluate the relationship between mammographically-detected BAC and CAC.Materials and Methods:A total of 31 patients who presented to our hospital for diagnostic or screening mammography and who underwent CAC scoring between 2015 and 2018 were included in the study. Agatston method was used to determine the CAC score. Total BAC, which varies from 0 to 12, was measured based on the number and length of calcified vessels and the severity of mammographically-visualized calcification.Results:The mean BAC scores were found to be 0 in 1 patient, 1-3 in nine patients and 4-12 in 21 patients. The mean CAC scores were found to be 0 in eight patients, 11-100 in 12 patients, 101-400 in eight patients and >400 in three patients. There was a statistically significant positive correlation between the BAC and CAC scores.Conclusion:This study revealed a positive correlation between the BAC and CAC scores. It was found that mammographic calcification scoring, which is already commonly used as a screening tool and is more advantageous than tomography, can be used for the early determination of intermediate risk groups for cardiovascular diseases.
Keywords	breast artery calcification ; coronary artery calcium score ; mammography ; cardiovascular disease ; screening ; Medicine ; R ; Medical emergencies. Critical care. Intensive care. First aid ; RC86-88.9
Subject code	610
Language	English
Publishing date	2020-09-01T00:00:00Z
Publisher	Galenos Yayinevi
Document type	Article ; Online
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