Evaluation of Neck Mass by Multidetector Computed Tomography and Histopathological Comparison.

Diagnostic usefulness of multidetector computed tomography (MDCT) scan in the evaluation of neck mass was assessed in this study in terms of sensitivity, specificity, positive and negative predictive value and accuracy in respect to characterise the lesion as benign and malignant, based on different parameters by comparing computed tomography and histopathological findings. This cross sectional study was carried out on 57 patients in the Department of Radiology and Imaging, Sir Salimullah Medical College and Mitford Hospital, Dhaka from January 2014 to December 2015, with a 16 slice multidetector CT scanner and the reports were compared to histopathological diagnosis. Out of 57 patients, 37 (64.9%) and 20 (35.1%) were diagnosed as malignant and benign lesions respectively, with a sensitivity of 94.6%, specificity 95%, positive predictive value 97.2%, negative predictive value 90.5% and diagnostic accuracy of 94.7%. As an imaging modality, thus, MDCT proved to be a useful tool for assessing and characterization of neck mass as benign and malignant, especially in this part of the continent, and is essential in planning surgical approach and predicting prognosis.

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Evaluation of Chest CT Scan as a Screening and Diagnostic Tool in Trauma Patients with Coronavirus Disease 2019 (COVID-19): A Cross-Sectional Study

Emergency Medicine International ◽

10.1155/2021/4188178 ◽

2021 ◽

Vol 2021 ◽

pp. 1-8

Author(s):

Hossein Abdolrahimzadeh Fard ◽

Salahaddin Mahmudi-Azer ◽

Sepideh Sefidbakht ◽

Pooya Iranpour ◽

Shahram Bolandparvaz ◽

...

Keyword(s):

Ct Scan ◽

Negative Predictive Value ◽

Predictive Value ◽

Cross Sectional Study ◽

Chest Ct ◽

Trauma Patients ◽

Ct Scanner ◽

Sectional Study ◽

Cross Sectional ◽

Chest Ct Scan

Background. The lack of enough medical evidence about COVID-19 regarding optimal prevention, diagnosis, and treatment contributes negatively to the rapid increase in the number of cases globally. A chest computerized tomography (CT) scan has been introduced as the most sensitive diagnostic method. Therefore, this research aimed to examine and evaluate the chest CT scan as a screening measure of COVID-19 in trauma patients. Methods. This cross-sectional study was conducted in Rajaee Hospital in Shiraz from February to May 2020. All patients underwent unenhanced CT with a 16-slice CT scanner. The CT scans were evaluated in a blinded manner, and the main CT scan features were described and classified into four groups according to RSNA recommendation. Subsequently, the first two Radiological Society of North America (RSNA) categories with the highest probability of COVID-19 pneumonia (i.e., typical and indeterminate) were merged into the “positive CT scan group” and those with radiologic features with the least probability of COVID-19 pneumonia into “negative CT scan group.” Results. Chest CT scan had a sensitivity of 68%, specificity of 56%, positive predictive value of 34.8%, negative predictive value of 83.7%, and accuracy of 59.3% in detecting COVID-19 among trauma patients. Moreover, for the diagnosis of COVID-19 by CT scan in asymptomatic individuals, a sensitivity of 100%, specificity of 66.7%, and negative predictive value of 100% were obtained ( p value: 0.05). Conclusion. Findings of the study indicated that the CT scan’s sensitivity and specificity is less effective in diagnosing trauma patients with COVID-19 compared with nontraumatic people.

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Role of ascitic fluid adenosine deaminase (ADA) and serum CA-125 in the diagnosis of tuberculous peritonitis

Bangladesh Medical Research Council Bulletin ◽

10.3329/bmrcb.v40i3.25228 ◽

2015 ◽

Vol 40 (3) ◽

pp. 89-91 ◽

Cited By ~ 5

Author(s):

N Ali ◽

NC Nath ◽

R Parvin ◽

A Rahman ◽

TM Bhuiyan ◽

...

Keyword(s):

Positive Predictive Value ◽

Negative Predictive Value ◽

Diagnostic Test ◽

Ascitic Fluid ◽

Predictive Value ◽

Ca 125 ◽

Histopathological Diagnosis ◽

Diagnostic Modality ◽

Cross Sectional

This cross sectional study was carried out in the department of gastroenterology, BIRDEM, Dhaka from January 2010 to May 2011 to determine the role of ascitic fluid ADA and serum CA-125 in the diagnosis of clinically suspected tubercular peritonitis. Total 30 patients (age 39.69±21.26, 18M/12F) with clinical suspicion of tuberculosis peritonitis were included in this study after analyzing selection criteria. Laparoscopic peritoneal biopsy with histopathological diagnosis was considered gold standard against which accuracics of two biomarkers (ADA & CA-125) were compared. Cut off value of ADA and CA-125 are 24 u/l, 35 U/ml respectively. Sensitivity, specificity, positive predictive value, negative predictive value and accuracy of ADA as a diagnostic modality in tuberculos peritonitis were 87.5%, 83.33%, 95.45%, 62.5% and 86.67% respectively where as CA-125 was found to have 83.33% sensitivity, 50% specificity, 86.9% positive predictive value, 42.85% negative predictive value and 76.6% accuracy. Both biomarkers are simple, non-invasive, rapid and relatively cheap diagnostic test where as laparoscopy is an invasive procedure, costly & requires trained staff and not without risk and also not feasible in all the centre in our country. So ascitic fluid ADA and serum CA-125 are important diagnostic test for peritoneal tuberculosis.Bangladesh Med Res Counc Bull 2014; 40 (3): 89-91

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Comparison of transvaginal and transabdominal ultrasonography in the diagnosis of ectopic pregnancy

Bangladesh Medical Research Council Bulletin ◽

10.3329/bmrcb.v39i3.20309 ◽

2014 ◽

Vol 39 (3) ◽

pp. 104-108 ◽

Cited By ~ 1

Author(s):

MN Nahar ◽

MA Quddus ◽

A Sattar ◽

M Shirin ◽

A Khatun ◽

...

Keyword(s):

Positive Predictive Value ◽

Ectopic Pregnancy ◽

Negative Predictive Value ◽

Predictive Value ◽

Transvaginal Ultrasonography ◽

Histopathological Diagnosis ◽

College Hospital ◽

Diagnostic Modality ◽

Cross Sectional ◽

Transabdominal Ultrasonography

This cross sectional study was carried out in the department of Radiology and Imaging, Dhaka Medical College Hospital from July 2008 to June 2010 to compare the accuracy of transvaginal ultrasonography and transabdominal ultrasonography in the diagnosis of clinically suspected cases of ectopic pregnancy. Initially 60 patients with clinical suspicion of ectopic pregnancy were included in this study after analyzing selection criteria 30 patients underwent both transvaginal and transabdominal ultrasonography. Histopathological diagnosis was considered gold standard against which accuracies of two diagnostic modalities were compared. Sensitivity, specificity, positive predictive value, negative predictive value and accuracy of transabdominal ultrasonography as a diagnostic modality in evaluation of suspected ectopic pregnancy were 73.1%, 75%, 95%, 30% and 73.3% respectively where as transvaginal ultrasonography was found to have 92.3% sensitivity, 75% specificity, 96% positive predictive value, 60% negative predictive value and 90% accuracy. Transvaginal ultrasonography was superior to transabdominal ultrasonography in the evaluation of suspected ectopic pregnancies .so, transvaginal ultrasonography is important for early and accurate diagnosis of ectopic pregnancy. DOI: http://dx.doi.org/10.3329/bmrcb.v39i3.20309 Bangladesh Med Res Counc Bull 2013; 39: 104-108

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Common carotid artery pseudoaneurysm after neck dissection: colour Doppler ultrasound and multidetector computed tomography findings

The Journal of Laryngology & Otology ◽

10.1017/s0022215106005342 ◽

2006 ◽

Vol 121 (5) ◽

pp. 497-500 ◽

Cited By ~ 6

Author(s):

N Flor ◽

F Sardanelli ◽

G Ghilardi ◽

A Tentori ◽

G Franceschelli ◽

...

Keyword(s):

Computed Tomography ◽

Carotid Artery ◽

Neck Dissection ◽

Multidetector Computed Tomography ◽

Doppler Ultrasound ◽

Common Carotid Artery ◽

Multidetector Ct ◽

Imaging Modality ◽

Conventional Angiography ◽

Artery Pseudoaneurysm

Common carotid artery pseudoaneurysm is a rare disease, which has been previously unreported in association with neck dissection. We describe the Doppler ultrasound and multidetector computed tomography (CT) findings of a case of carotid pseudoaneurysm, one month after pharyngolaryngectomy with bilateral neck dissection. Multidetector CT confirmed the diagnosis made on the basis of Doppler ultrasound; the high image quality of axial and three-dimensional reconstructions avoided the need for pre-operative conventional angiography. In the presence of a pulsatile cervical mass after neck surgery, pseudoaneurysm of the carotid artery should be included in the differential diagnosis, and multidetector CT can be the sole pre-operative diagnostic imaging modality.

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Role of multidetector computed tomography in evaluation of retroperitoneal masses

International Journal of Research in Medical Sciences ◽

10.18203/2320-6012.ijrms20184888 ◽

2018 ◽

Vol 6 (12) ◽

pp. 3949

Author(s):

Diksha Chinwan ◽

Poonam Vohra

Keyword(s):

Computed Tomography ◽

Multidetector Computed Tomography ◽

Imaging Modality ◽

Plain Radiograph ◽

Imaging Modalities ◽

Cross Sectional ◽

Multiplanar Reconstructions ◽

Abdominal Masses ◽

Mixed Pattern ◽

The Masses

Background: Diagnostic imaging plays an important role in the evaluation of abdominal masses. Many imaging modalities are available ranging from conventional modalities to the cross-sectional modalities like USG, CT and MRI. The main principles of imaging are to determine the origin of mass, its measurement, extent, characterisation and assessment of its effect on contiguous organs. In the past, the mainstay was conventional imaging modalities like plain radiograph, Gastrointestinal contrast studies and I.V.U. Modern imaging modalities allow an early and accurate pre-operative diagnosis resulting in a higher rate of surgical resection and improvement of survival.Methods: A Cross-sectional observational study was done in 30 patients. Patients of either sex of any age group who had presented with involvement of retroperitoneal organs detected by routine ultrasound and postoperative patients with recurrence were included in our study.Results: Ultrasound is the initial imaging modality of choice since it is inexpensive, easy to perform and no radiation exposure. On USG, the retroperitoneal masses are classified as solid or cystic or mixed. Since most of the retroperitoneal masses have hetroechoic/mixed pattern, they cannot be characterized by ultrasound alone and hence need further evaluation.Conclusions: Multidetector computed tomography is the imaging modality of choice for further evaluation and characterization. CT protocol for evaluation of the retroperitoneum consisted of both non-enhanced and contrast-enhanced scans for localisation and characterisation of the masses. Multiplanar reconstructions allowed the images to be viewed in any plane chosen including a curved plane thus helping in defining the exact location and extent of the lesion. With MIP and volume rendered images, the relationship of the vessels with the mass lesions was clearly visualized.

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Evaluation of Chest CT scan as a screening and diagnostic tool in trauma patients with coronavirus disease 2019 (COVID-19): a cross-sectional study in southern Iran

10.21203/rs.3.rs-110402/v2 ◽

2020 ◽

Author(s):

Hossein Abdolrahimzadeh Fard ◽

Salahaddin Mahmudi-Azer ◽

Sepideh Sefidbakht ◽

Pooya Iranpour ◽

Shahram Bolandparvaz ◽

...

Keyword(s):

Ct Scan ◽

Negative Predictive Value ◽

Predictive Value ◽

Cross Sectional Study ◽

Chest Ct ◽

Trauma Patients ◽

Ct Scanner ◽

Sectional Study ◽

Cross Sectional ◽

Chest Ct Scan

Abstract Purpose: The lack of enough medical evidence about COVID-19 regarding optimal prevention, diagnosis, and treatment contributes negatively to the rapid increase in the number of cases globally. A chest computerized tomography (CT) scan has been introduced as the most sensitive diagnostic method. Therefore, this research aimed to examine and evaluate the chest CT scan as a screening measure of COVID-19 in trauma patients.Methods: This cross-sectional study was conducted in Rajaee Hospital in Shiraz from February to May 2020. All patients underwent unenhanced CT with a 16-slice CT scanner. The CT-scans were evaluated in a blinded manner and main CT scan features were described and classified into four groups according to RSNA recommendation. Subsequently, the first two RSNA categories with the highest probability of COVID pneumonia (i.e. typical and indeterminate) were merged into the “positive CT scan group” and those with radiologic features with the least probability of COVID pneumonia into “negative CT scan group”.Results: Chest CT scan had a sensitivity (68%), specificity (56%), positive predictive value (34.8%), negative predictive value (83.7%), and accuracy (59.3%) in detecting COVID-19 among trauma patients. Also, for the diagnosis of COVID-19 by CT scan in asymptomatic individuals a sensitivity of 100% and a specificity of 66.7% and a negative predictive value of 100% was obtained.Conclusion: Findings of the study indicated that the CT scan's sensitivity and specificity is less effective in diagnosing trauma patients with COVID-19 in comparison to non-traumatic people.

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Role of computed tomography in the evaluation of schwannoma in the posterior cranial fossa

Bangladesh Medical Journal ◽

10.3329/bmj.v42i3.19002 ◽

2014 ◽

Vol 42 (3) ◽

pp. 85-88

Author(s):

S Akhter ◽

M Rahman ◽

S Nobi ◽

L Khondker ◽

N Ahmed ◽

...

Keyword(s):

Computed Tomography ◽

Brain Stem ◽

Predictive Value ◽

Cross Sectional Study ◽

Posterior Cranial Fossa ◽

Histopathological Diagnosis ◽

Brain Stem Glioma ◽

Cross Sectional ◽

Cranial Fossa

Schwannoma is one of the most common posterior cranial fossa tumours. Normal skull radiograph may not give any clue to diagnosis and further investigation with computed tomography or magnetic resonance imaging is necessary. This cross sectional study was carried out in the department of neurosurgery and the department of radiology and Imaging, Bangabandhu Sheikh Mujib Medical University (BSMMU), Dhaka, Bangladesh during the period from July 2009 to June 2011 to evaluate the role of computed tomography in the diagnosis of schwannoma in the posterior cranial fossa. Total eighty nine patients with clinical features of posterior cranial fossa tumour were enrolled in this study. Mean age of the patients was 29.15±19.64 years. Computed tomography scan revealed that 38.2% had schwannoma, 24.7% had meningioma, 21.3% had astrocytoma, 15.7% medulloblastoma, 10.1% had brain stem glioma, 5.6% had ependymoma and for the rest 4.4%, 1.1% of each had epidermoid, metastatic, hemangioblastoma and others. After histopathological diagnosis 36.0% patients had schwannoma, 19.1% had astrocytoma, 15.7% had medulloblastoma, 11.2% had meningioma, 7.9% had brain stem glioma, 5.6% had ependymoma and rest 4.4% had epidermoid, metastatic, hemangioblastoma and others. Sensitivity of computed tomography to diagnose schwannoma was 100.0%, specificity 96.5%, positive predictive value 94.1%, negative predictive value 100.0% and accuracy 97.8%. It can therefore be concluded that computed tomography is a useful modality in the evaluation of schwannoma in the posterior cranial fossa. DOI: http://dx.doi.org/10.3329/bmj.v42i3.19002 Bangladesh Med J. 2013 Sept; 42 (3): 85-88

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Diagnostic Accuracy of BISAP Score for Detecting Acute Pancreatitis Keeping Computed Tomography Severity Index as GS

10.53350/pjmhs2115113164 ◽

2021 ◽

Vol 15 (11) ◽

pp. 3164-3165

Author(s):

Mohammad Iltaf ◽

Sana Akhtar ◽

Dilaram Khan

Keyword(s):

Computed Tomography ◽

Acute Pancreatitis ◽

Positive Predictive Value ◽

Diagnostic Accuracy ◽

Negative Predictive Value ◽

Severe Acute Pancreatitis ◽

Predictive Value ◽

Gold Standard ◽

Severity Index ◽

Cross Sectional

Objective: To establish the diagnostic accuracy of BISAP in detecting the severe acute pancreatitis keeping computed tomography severity index as gold standard. Study Design: Cross-sectional study Place and Duration of Study: Department of Gastroenterology, Hayatabad Medical Complex, Peshawar from April 16th 2018 to 16th October 2018. Methodology: One hundred and twenty nine patients of age range of 18-60, of either gender having severe acute pancreatitis were included. While patients already diagnosed as severe acute pancreatitis and having known history of chronic pancreatitis were excluded. Patients were subjected to CT scan to confirm whether the severe acute pancreatitis is present or not. All CT scans were reported by single experiences radiologist. Results: There were 30.3% were males and 69.7% were females with mean age 42±11.03 years. BISAP had sensitivity 92.74%, specificity 80%, positive predictive value 99.13%, negative predictive value 20.76% and the overall diagnostic accuracy was 92.24%. Conclusion: BISAP had sensitivity 93.61%, specificity 100%, positive predictive value 100%, negative predictive value 40% and the overall diagnostic accuracy was 93.87% in severe acute pancreatitis keeping CT severity index as gold standard. Keywords: Accuracy, Severe acute pancreatitis, Computed tomography

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Acute Appendicitis - Study of Role of Ultrasound and CT Scan in Decision Making for Surgery in a Tertiary Care Government Hospital in Eastern India

Journal of Evidence Based Medicine and Healthcare ◽

10.18410/jebmh/2021/556 ◽

2021 ◽

Vol 8 (33) ◽

pp. 3048-3053

Author(s):

Jainendra Kumar ◽

Akriti Komal

Keyword(s):

Computed Tomography ◽

Acute Appendicitis ◽

Positive Predictive Value ◽

Negative Predictive Value ◽

Predictive Value ◽

Imaging Modality ◽

Tertiary Care ◽

Accurate Diagnosis ◽

Final Decision ◽

Sensitivity Specificity

BACKGROUND Acute appendicitis (AA) is one of the commonest causes of acute abdominal emergencies. Accurate diagnosis and earlier surgery is imperative in such cases. Ultrasonography (US), and computed tomography (CT), are main stays accurate diagnosis of this disease. This study was conducted to compare the accuracy of US and CT in the diagnosis of AA and reduce number of negative appendectomies. METHODS This prospective study was done after approval from institutional ethical committee and obtaining written consent. 164 patients with clinical features suggestive of AA, were selected from emergency department of Patna Medical College, Patna India during the period from January 2019 to December 2020. 98 were males and 66 females, mean age being 18.08 years. 142 patents (86.58 %) underwent surgery, and 22 patients (13.41 %) were kept on clinical observation in hospital after imaging. After detailed clinical workup and laboratory investigations, all patients were subjected to both US and CT examination. Each patient was reevaluated clinically, and a clinical correlation was done between both sets of results. Based on these, final decision was made. Accuracy was decided based on intra-operative findings in appendectomy group and were correlated with imaging findings later with histopathologic findings. RESULTS Males outnumbered females, abdominal pain was present in 100%. The sensitivity, specificity, positive predictive value, negative predictive value and overall accuracy of US in diagnosis of AA in our study were 92.6 %, 76.4 %, 95.3%, 71.0% and 88.9 % respectively. The sensitivity, specificity, positive predictive value, negative predictive value and overall accuracy of CT in diagnosis of AA were 99.1 %, 90.5 %, 98.6%, 87.8% and 97.8 % respectively. CONCLUSIONS US should be the first-line imaging modality as it is free from radiation. CT is recommended as additional imaging tool to raise accuracy in diagnosis except in pregnancy and selected pediatric patients. KEYWORDS Acute Appendicitis, Computed Tomography, Ultrasound

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Evaluation of Chest CT scan as a screening and diagnostic tool in trauma patients with coronavirus disease 2019 (COVID-19): a cross-sectional study in southern Iran

10.21203/rs.3.rs-110402/v1 ◽

2020 ◽

Author(s):

Hossein Abdolrahimzadeh Fard ◽

Salahaddin Mahmudi-Azer ◽

Sepideh Sefidbakht ◽

Pooya Iranpour ◽

Shahram Bolandparvaz ◽

...

Keyword(s):

Ct Scan ◽

Negative Predictive Value ◽

Predictive Value ◽

Cross Sectional Study ◽

Chest Ct ◽

Trauma Patients ◽

Ct Scanner ◽

Sectional Study ◽

Cross Sectional ◽

Chest Ct Scan

Abstract Background: The lack of enough medical evidence about COVID-19 regarding optimal prevention, diagnosis, and treatment contributes negatively to the rapid increase in the number of cases globally. A chest computerized tomography (CT) scan has been introduced as the most sensitive diagnostic method. Therefore, this research aimed to examine and evaluate the chest CT scan as a screening measure of COVID-19 in trauma patients. Method: This cross-sectional study was conducted in Rajaee Hospital in Shiraz from February to May 2020. All patients underwent unenhanced CT with a 16-slice CT scanner. The CT-scans were evaluated in a blinded manner and main CT scan features were described and classified into four groups according to RSNA recommendation. Subsequently, the first two RSNA categories with the highest probability of COVID pneumonia (i.e. typical and indeterminate) were merged into the “positive CT scan group” and those with radiologic features with the least probability of COVID pneumonia into “negative CT scan group”.Results: Chest CT scan had a sensitivity (68%), specificity (56%), positive predictive value (34.8%), negative predictive value (83.7%), and accuracy (59.3%) in detecting COVID-19 among trauma patients. Also, for the diagnosis of COVID-19 by CT scan in asymptomatic individuals a sensitivity of 100% and a specificity of 66.7% and a negative predictive value of 100% was obtained.Conclusion: Findings of the study indicated that the CT scan's sensitivity and specificity is less effective in diagnosing trauma patients with COVID-19 in comparison to non-traumatic people.

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