Negative predictive value of intravenous contrast-enhanced CT of the abdomen for patients presenting to the emergency department with undifferentiated upper abdominal pain

2011 ◽  
Vol 19 (1) ◽  
pp. 19-26 ◽  
Author(s):  
Hyungjoo Ham ◽  
Matthew D. F. McInnes ◽  
Michael Woo ◽  
Sylvie Lemonde
Keyword(s):  
Emergency Department ◽  
Abdominal Pain ◽  
Negative Predictive Value ◽  
Predictive Value ◽  
Intravenous Contrast ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Upper Abdominal

scholarly journals The feasibility of deep learning-based synthetic contrast-enhanced CT from nonenhanced CT in emergency department patients with acute abdominal pain

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Se Woo Kim ◽  
Jung Hoon Kim ◽  
Suha Kwak ◽  
Minkyo Seo ◽  
Changhyun Ryoo ◽  
...  
Keyword(s):  
Emergency Department ◽  
Abdominal Pain ◽  
Deep Learning ◽  
Acute Abdominal Pain ◽  
Point Scale ◽  
Contrast Enhanced Ct ◽  
Underlying Malignancy ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Emergency Department Patients

AbstractOur objective was to investigate the feasibility of deep learning-based synthetic contrast-enhanced CT (DL-SCE-CT) from nonenhanced CT (NECT) in patients who visited the emergency department (ED) with acute abdominal pain (AAP). We trained an algorithm generating DL-SCE-CT using NECT with paired precontrast/postcontrast images. For clinical application, 353 patients from three institutions who visited the ED with AAP were included. Six reviewers (experienced radiologists, ER1-3; training radiologists, TR1-3) made diagnostic and disposition decisions using NECT alone and then with NECT and DL-SCE-CT together. The radiologists’ confidence in decisions was graded using a 5-point scale. The diagnostic accuracy using DL-SCE-CT improved in three radiologists (50%, P = 0.023, 0.012, < 0.001, especially in 2/3 of TRs). The confidence of diagnosis and disposition improved significantly in five radiologists (83.3%, P < 0.001). Particularly, in subgroups with underlying malignancy and miscellaneous medical conditions (MMCs) and in CT-negative cases, more radiologists reported increased confidence in diagnosis (83.3% [5/6], 100.0% [6/6], and 83.3% [5/6], respectively) and disposition (66.7% [4/6], 83.3% [5/6] and 100% [6/6], respectively). In conclusion, DL-SCE-CT enhances the accuracy and confidence of diagnosis and disposition regarding patients with AAP in the ED, especially for less experienced radiologists, in CT-negative cases, and in certain disease subgroups with underlying malignancy and MMCs.

scholarly journals Comparative diagnostic value of contrast-enhanced ultrasonography, computed tomography, and magnetic resonance imaging in diagnosis of hepatic hemangiomas

Medicina ◽  
2010 ◽  
Vol 46 (5) ◽  
pp. 329 ◽  
Author(s):  
Kristina Žvinienė ◽  
Inga Zaborienė ◽  
Algidas Basevičius ◽  
Nemira Jurkienė ◽  
Giedrius Barauskas ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Prognostic Value ◽  
Hepatic Hemangioma ◽  
Resonance Imaging ◽  
Intravenous Contrast ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Contrast Enhanced Ultrasonography ◽  
Hepatic Hemangiomas

Aim. To compare the value of intravenous contrast-enhanced ultrasonography (US), intravenous contrast-enhanced computed tomography (CT), and magnetic resonance imaging (MRI) in the diagnosis of hepatic hemangiomas. Material and methods. The study enrolled 48 patients, aged between 20 and 79 years (35 [72.9%] women, 13 [27.1%] men; mean age, 53.5±12.855 years), who were examined and treated in the Departments of Gastroenterology, Surgery, and Oncology, Hospital of Kaunas University of Medicine, in the year 2007. All patients underwent intravenous contrast-enhanced US, intravenous contrast-enhanced CT, and MRI and were diagnosed with hepatic hemangioma according to the findings of these examinations. Results. The size of hemangiomas was ≤2.0 cm in 20 cases (41.7%) and >2.0 cm in 28 (58.3%). No association between hepatic hemangioma and patient’s age was found (χ2=0.547, df=2, P=0.761). Nearly one-third of hemangiomas were located in the segment IV of the left hepatic lobe. There were a few complicated hemangiomas in the study sample: 2 with calcification and 1 with necrosis. The sensitivity of CT in the diagnosis of hepatic hemangioma was 76.92%; specificity, 33.3%; positive prognostic value, 83.3%; and negative prognostic value, 25.0%. The sensitivity of intravenous contrast-enhanced US in the diagnosis of hepatic hemangioma was 77.8%; specificity, 100%; positive prognostic value, 100%; and negative prognostic value, 23.1%. Conclusions. Intravenous contrast-enhanced US is more specific than intravenous contrast-enhanced CT in the diagnosis of hepatic hemangioma (P=0.0005) and has a higher positive prognostic value (P=0.001).

scholarly journals Chest Pain of Uncertain Aetiology: Role of Contrast Enhanced Computed Tomography in the Emergency Department

2016 ◽  
Vol 10 (1) ◽  
pp. 205-211
Author(s):  
Firas Yassin ◽  
Chris Sawh ◽  
Pankaj Garg
Keyword(s):  
Emergency Department ◽  
Chest Pain ◽  
Acute Chest Pain ◽  
Coronary Event ◽  
Computed Tomographic ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Enhanced Computed Tomography

There is increasing role of computed tomographic (CT) in the assessment of acute chest pain in the emergency department especially when the diagnosis is not clear. We report a case where non ECG gated contrast enhanced CT in the emergency department for rule-out of pulmonary embolus guided to the actual diagnosis, which was, acute coronary event, as evidenced by the presence of perfusion defect.

Hepatic leiomyomas in two adult patients with AIDS: intravenous contrast-enhanced CT and MR imaging

2002 ◽  
Vol 9 (3) ◽  
pp. 175-177 ◽  
Author(s):  
Michael Sadler ◽  
Warren L. Mays ◽  
Pradeep Albert ◽  
Bruce Javors
Keyword(s):  
Mr Imaging ◽  
Adult Patients ◽  
Intravenous Contrast ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct

scholarly journals Gastric Bezoar - A Rare Presentation in Infant

2016 ◽  
Vol 6 (1) ◽  
pp. 24-27
Author(s):  
MTH Siddiqui ◽  
Mohammad Mahabubul Alam ◽  
AM Shahinur ◽  
AKM Zahid Hossain ◽  
Gazi Zahirul Hasan
Keyword(s):  
Differential Diagnosis ◽  
Ct Scan ◽  
Contrast Medium ◽  
Medium Study ◽  
Rare Presentation ◽  
Contrast Enhanced Ct ◽  
Gastric Bezoar ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
Upper Abdominal

Gastric bezoar in neonate is a rare presentation. Because of rarity of phytobezoar and lactobezoar are not considered as the differential diagnosis of a lump and vomiting commonly. A 7 month female presented with left upper abdominal undifferentiated hard mobile lump and post prandial occasional vomiting. Diagnosis was non-conclusive with USG, contrast medium study of stomach and duodenum and contrast enhanced CT scan. After laparotomy and gastrostomy mass was removed and diagnosed as phytolactobezoar on macroscopic appearance.J. Paediatr. Surg. Bangladesh 6(1): 24-27, 2015 (Jan)

scholarly journals A Case of Isolated Celiac Artery Dissection Accompanied by Splenic Infarction Detected by Ultrasonography in the Emergency Department

2016 ◽  
Vol 2016 ◽  
pp. 1-5 ◽  
Author(s):  
Kazumasa Emori ◽  
Nobuhiro Takeuchi ◽  
Junichi Soneda
Keyword(s):  
Emergency Department ◽  
Celiac Artery ◽  
Splenic Infarction ◽  
Artery Dissection ◽  
Emergency Setting ◽  
Contrast Enhanced Ct ◽  
Contrast Enhanced ◽  
Enhanced Ct ◽  
History Of ◽  
Enhanced Computed Tomography

A 46-year-old male with a history of hypertension visited the emergency department (ED) by ambulance complaining of sudden pain in the left side of his back. Ultrasonography (USG) performed at ED revealed splenic infarction along with occlusion and dissection of the celiac and splenic arteries without abdominal artery dissection. Contrast enhanced computed tomography (CT) revealed the same result. Consequently, spontaneous isolated celiac artery dissection (SICAD) was diagnosed. Because his blood pressure was high (159/70 mmHg), antihypertensive medicine was administered (nicardipine and carvedilol). After his blood reached optimal levels (130/80 mmHg), symptoms disappeared. Follow-up USG and contrast enhanced CT performed 8 days and 4 months after onset revealed amelioration of splenic infarction and improvement of the narrowed artery. Here, we report a case of SICAD with splenic infarction presenting with severe left-sided back pain and discuss the relevance of USG in an emergency setting.

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