LIVIVO - Das Suchportal für Lebenswissenschaften

switch to English language
Zurück zur letzten Suche Suchhistorie
Erweiterte Suche

Ihre letzten Suchen

  1. AU="Paulus Rahardjo"
  2. AU="Geier, Martina"
  3. AU="Kwon, Tae-Hwan"
  4. AU="Christos Barboutis, "
  5. AU="Fayaz, U"
  6. AU="Ba, Yabo"
  7. AU="Stevens, Valerie A"
  8. AU="Kahouli, Sophia"
  9. AU="Sun, Chuanrui"
  10. AU="Carrera, Carlo Giovanni"
  11. AU="Secrieru, Oana Manuela"
  12. AU="Wang, Lanzhong"

Suchergebnis

Treffer 1 - 4 von insgesamt 4

Suchoptionen

  1. Artikel ; Online: ANALYSIS OF ASIR VARIATION EFFECT TO SNR ON UNENHANCED ABDOMINAL CT SCAN IN UROLITHIASIS

    Rizki Aditiya Pratama Putra / Paulus Rahardjo / Pramono Pramono

    Journal of Vocational Health Studies, Vol 4, Iss 2, Pp 78-

    2020  Band 82

    Abstract: Background: Adaptive Statistical Iterative Reconstruction (ASIR) reconstruction in unenhanced abdominal CT scan reduce the radiation dose from 11.6 mSv to 2.07 mSv. However, the decrease in dose is accompanied by a decrease in image quality. Signal to ... ...

    Abstract Background: Adaptive Statistical Iterative Reconstruction (ASIR) reconstruction in unenhanced abdominal CT scan reduce the radiation dose from 11.6 mSv to 2.07 mSv. However, the decrease in dose is accompanied by a decrease in image quality. Signal to Noise Ratio (SNR) is one of image quality parameters. Purpose: This study aims to determine the effect of the ASIR method on the optimal Signal to Noise Ratio (SNR) value in unenhanced abdominal CT of urolithiasis in clinical data. Method: 27 samples collected and the SNR was measured on the ASIR reconstruction results at the level of 40%, 50%, 60% by placing the ROI in organ structures with different densities. Result: The results of this study indicate that the ASIR method has a significant effect on the SNR value. Based on the linear regression test, the value was 0.005 ( p< 0.05) and only had an effect of 9.5% on SNR. Conclusion: It can be concluded that the ASIR method affects the optimal SNR value for unenhanced abdominal CT on urolithiasis. The ASIR 60% level was recommended.
    Schlagwörter adaptive statistical iterative reconstruction (asir) ; signal to noise ratio (snr) ; unenhanced abominal ct scan ; urolithiasis ; Medicine ; R ; Microbiology ; QR1-502
    Thema/Rubrik (Code) 616
    Sprache Bahasa Indonesia
    Erscheinungsdatum 2020-11-01T00:00:00Z
    Verlag Universitas Airlangga
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  2. Artikel ; Online: Correlation of quantitative diffusion weighted MR imaging between benign, malignant chondrogenic and malignant non-chondrogenic bone tumors with histopathologic type

    Rosy Setiawati / M.S. Suarnata / Paulus Rahardjo / Del Grande Filippo / Giuseppe Guglielmi

    Heliyon, Vol 7, Iss 3, Pp e06402- (2021)

    2021  

    Abstract: Objectives: This study aims to determine the diffusion on weighted imaging which may help in providing characterization of Apparent Diffusion Coefficient (ADC) values in benign, malignant chondrogenic and malignant non-chondrogenic bone tumors. Material ... ...

    Abstract Objectives: This study aims to determine the diffusion on weighted imaging which may help in providing characterization of Apparent Diffusion Coefficient (ADC) values in benign, malignant chondrogenic and malignant non-chondrogenic bone tumors. Material and methods: A retrospective study with 84 samples was conducted from October 2017 to December 2019. The samples consisted of 44 males and 40 females; the age range of 10–73 years (mean age of 32.7 years old). A Diffusion-weighted Magnetic Resonance (MR) utilizes a single-shot echo-planar imaging sequence technique with the 3T MR Scanner. We classified the types of tumors into benign, malignant chondrogenic and malignant non-chondrogenic bone tumors. The mean of ADC values from the area with lowest ADC values was selected for statistical analysis. ADC values were compared between benign, malignant chondrogenic and malignant non-chondrogenic bone tumors. Therefore, Receiver Operating Curve (ROC) analysis was done to determine optimal cut-off values. The correlation of ADC values between benign, malignant chondrogenic and malignant non-chondrogenic bone tumor with histopathologic type was also evaluated. Results: The mean of ADC values from the area of benign, malignant chondrogenic and malignant non-chondrogenic bone tumor were 1.55 × 10−3 mm2/s, 1.84 × 10−3 mm2/s and 1.12 × 10−3 mm2/s respectively. As a matter of fact, there was a significant difference between benign and malignant bone tumor with cut-off value of 1.15 × 10−3 mm2/s and had a sensitivity of 82%, and a specificity of 92.3%. Moreover, a significant correlation was also found between ADC values with the histopathology type of bone tumors. Conclusion: The ADC values of benign and malignant (chondrogenic and non-chondrogenic groups) bone tumors are different. Thus, the measurement of ADC values improves the accuracy of the diagnosis of bone tumors.
    Schlagwörter Apparent diffusion coefficient ; Bone tumors ; Diffusion weighted imaging ; Science (General) ; Q1-390 ; Social sciences (General) ; H1-99
    Thema/Rubrik (Code) 616
    Sprache Englisch
    Erscheinungsdatum 2021-03-01T00:00:00Z
    Verlag Elsevier
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  3. Artikel ; Online: Profile of Clinical and Radiological Factors of Intracerebral Hemorrhage Stroke Patients in Dr. Soetomo Hospital

    Farizal Rizky Muharram / Asra Al Fauzi / Paulus Rahardjo / Pudji Lestari

    Juxta: Jurnal Ilmiah Mahasiswa Kedokteran Universitas Airlangga, Vol 10, Iss 1, Pp 15-

    2019  Band 19

    Abstract: Introduction: ICH (intracerebral hemorrhage) is a medical emergency with high mortality and morbidity that occurs in 15-20% of stroke cases. However, in the Multicenter Surgical Trial in Lobar ICH (STICH) study no benefit was found from the initial ... ...

    Abstract Introduction: ICH (intracerebral hemorrhage) is a medical emergency with high mortality and morbidity that occurs in 15-20% of stroke cases. However, in the Multicenter Surgical Trial in Lobar ICH (STICH) study no benefit was found from the initial operative handler in Lobar ICH patients. Many clinical and radiological factors that affect outcomes of patients. Methods: The design of this study was a cross-sectional study. Clinical and radiological factors were analyzed by chi-square test and Kruskal-Wallis test. Then significant results were sought Relative Risk Results: This research was conducted from January 2017 to September 2018 starting from sampling to processing data. Sampling was carried out at the medical record center of Dr. Hospital. Soetomo Surabaya. Data collection is done by using secondary data in the form of patient medical records. All of the collected intracerebral hemorrhage patients were 302 and the total patients who met the inclusion and exclusion criteria were included in the study as the study subjects. Patients who met the criteria obtained 247 research subjects. Conclusion: There are several factors that influence the outcome of ICH stroke patients. Radiological factors and clinical factors both have an impact on outcomes. Further research is needed to find out which factors can be a diagnosis for choosing treatments that provide better outcomes. Statistically more than 1 variable is needed to determine an action that results in a more significant outcome of living patients. This shows that the choice of treatment for patients with different characteristics requires different treatments. Further analysis is needed to look for indications of the use of Operative or Conservative actions16.
    Schlagwörter Medicine (General) ; R5-920
    Thema/Rubrik (Code) 610
    Sprache Englisch
    Erscheinungsdatum 2019-01-01T00:00:00Z
    Verlag Fakultas Kedokteran Universitas Airlangga
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

  4. Artikel ; Online: Comparison Of Number Of Diffusion Gradient Direction In Brain Imaging Diffusion Tensor; Case Study Of Tumor Brain

    Afif Rofiky / Paulus Rahardjo / Didik Soeharmanto

    Journal of Vocational Health Studies, Vol 1, Iss 1, Pp 15-

    2017  Band 17

    Abstract: Background : Diffusion Tensor Imaging (DTI), namely MRI sequence which is the diffusion of water analysis that shows the complex structure of brain tissue. The weakness of this sequence is scanning time. Number of Diffusion Gradient Direction (NDGD) is ... ...

    Abstract Background : Diffusion Tensor Imaging (DTI), namely MRI sequence which is the diffusion of water analysis that shows the complex structure of brain tissue. The weakness of this sequence is scanning time. Number of Diffusion Gradient Direction (NDGD) is one of parameter that effect scanning time. Purpose: This study has aim to compare between NDGD 25 and NDGD 15 in brain tumor. Methods: This study used observational analytic study with prospective approach. Five patients were examined using DTI sequence with NDGD 25 and NDGD 15. The parameter for evaluating the quality image is of Fractional Anisotropy (FA) and Fiber Tracking (FT). Result: Image with NDGD 25 was better than NDGD 15, but the difference was not significantly. Conclusion: It can be concluded that NDGD 15 can be solution to get informative image with short scan time when DTI sequence is used to examine brain tumor.
    Schlagwörter brain tumor ; fiber tracking ; fractional anisotropy ; Medicine ; R ; Microbiology ; QR1-502
    Thema/Rubrik (Code) 616
    Sprache Bahasa Indonesia
    Erscheinungsdatum 2017-07-01T00:00:00Z
    Verlag Universitas Airlangga
    Dokumenttyp Artikel ; Online
    Datenquelle BASE - Bielefeld Academic Search Engine (Lebenswissenschaftliche Auswahl)

    Volltext online

    Zusatzmaterialien

    Kategorien

    Fernleihe an ZB MED

    Sie können sich den gewünschten Titel als lokale Nutzerin oder lokaler Nutzer von ZB MED direkt an den Standort Köln schicken lassen.

Zum Seitenanfang