Application of Multi-slice Spiral CT Reconstruction in Acute Abdomen Imaging Diagnosis

2021 ◽  
Keyword(s):  
Acute Abdomen ◽  
Spiral Ct ◽  
Ct Reconstruction ◽  
Imaging Diagnosis

Three-dimensional spiral CT reconstruction in a patient with massive cerebral air embolism

2004 ◽  
Vol 11 (2) ◽  
pp. 87-88 ◽  
Author(s):  
Fatih Alper ◽  
Mecit Kantarci ◽  
Omer Onbas ◽  
Adnan Okur ◽  
Naci Ceviz
Keyword(s):  
Three Dimensional ◽  
Air Embolism ◽  
Spiral Ct ◽  
Ct Reconstruction ◽  
Cerebral Air Embolism

Diagnostic Value of Ultrasound Imaging in Obstetrics and Gynecology Acute Abdomen

2021 ◽  
Vol 11 (2) ◽  
pp. 469-477
Author(s):  
Sicong Li ◽  
Liangzhi Xu
Keyword(s):  
Acute Abdomen ◽  
Ultrasound Imaging ◽  
Diagnostic Value ◽  
Obstetrics And Gynecology ◽  
Imaging Diagnosis ◽  
Clinical Value ◽  
Obstetrics And Gynaecology ◽  
Imaging Characteristics ◽  
Objective Evidence ◽  
Acute Pelvic Inflammatory Disease

Common types of gynecological acute abdomen include ovarian cyst pedicle torsion, ectopic pregnancy, luteal rupture, and acute pelvic inflammatory disease. Make accurate diagnosis and surgical treatment of acute abdomen patients in obstetrics and gynecology in time, otherwise it will cause life danger or loss of organ function, therefore, accurate and timely diagnosis and treatment of gynecological acute abdomen is very important for the prognosis of patients. Ultrasound imaging has important clinical value for the diagnosis of acute abdomen in obstetrics and gynecology. Ultrasound imaging has the advantages of simple examination, rapid reporting, and no pain in the subject, which is one of the best methods for diagnosing acute abdomen in obstetrics and gynecology. This study analysed and summarized the imaging principles of ultrasound imaging in acute obstetrics and gynecology and the imaging characteristics of various acute abdomen. A retrospective analysis of patients with acute obstetrics and gynaecology performed in our hospital from December 2017 to June 2019 was performed. The diagnostic analysis of ultrasound imaging in acute obstetrics and gynaecology was performed. The results showed that the ultrasound imaging diagnosis results of 202 obstetric and gynecological acute abdomen patients were compared with the results of surgery and pathological diagnosis. Among the 182 cases with correct ultrasound imaging diagnosis, the coincidence rate was 90.1%, and 20 cases were misdiagnosed, accounting for 9.9%. The research of this study shows that the ultrasound examination technique for patients with acute obstetrics and gynaecology is simple, fast, non-invasive, and has high accuracy. Ultrasound imaging can provide reliable objective evidence for the diagnosis and differential diagnosis of most acute abdominal diseases, in order to improve the diagnosis rate and reduce the misdiagnosis rate.

scholarly journals Clinical Effect Observation of Spiral CT in The Etiological Diagnosis of Senile Acute Abdomen

2015 ◽  
Vol 4 (3) ◽  
pp. 16
Author(s):  
Jun Li
Keyword(s):  
Adverse Reaction ◽  
Acute Abdomen ◽  
Clinical Application ◽  
Reaction Rate ◽  
Statistical Significance ◽  
Spiral Ct ◽  
Liver Mri ◽  
Etiological Diagnosis ◽  
Comparison Results ◽  
Diagnosis Rate

<strong>Objective</strong>: To discuss the clinical application value of multi-slice spiral CT in etiological diagnosis of senile acute abdomen. <strong>Methods</strong>: To select 80 cases of elderly patients with acute abdomen received treatment from June 2006 to August 2012 in our hospital. Among them, 40 patients were diagnosed by multi-slice spiral CT technique and considered as CT group; 40 patients were diagnosed by liver MRI technology and considered as MRI group. The diagnostic accuracy and adverse reaction rate of two groups were compared, and the comparison results were analyzed statistically using SPSS statistical software. <strong>Result</strong>: The diagnosis rate of CT group was significantly higher than that of MIR group, while the adverse reaction rate was significantly lower than that of MIR group, <em>p </em>&lt; 0.05, with statistical significance. <strong>Conclusion</strong>: multi-slice spiral CT can accurately diagnose the cause of senile acute abdomen. It has important clinical significance for the treatment of senile acute abdomen, and it has clinical application value.

The acute abdomen

2020 ◽  
pp. 2765-2770
Author(s):  
Simon J.A. Buczacki ◽  
R. Justin Davies
Keyword(s):  
Abdominal Pain ◽  
Acute Abdomen ◽  
Ct Scanning ◽  
Spiral Ct ◽  
Rapid Onset ◽  
Rapid Diagnosis ◽  
Pathological Diagnosis ◽  
Medical Patients ◽  
Experienced Physician ◽  
Medical Wards

The term ‘acute abdomen’ describes abdominal pain of rapid onset requiring urgent surgical assessment. No firm pathological diagnosis is made in many patients initially presenting in this way, but those that do, require rapid diagnosis and treatment to avoid potentially life-threatening complications. Patients may present directly to medical specialties with an acute abdomen, or abdominal pain may occur in patients already residing on medical wards. These patients are often old and their acute abdomen is likely to present on a background of other comorbidities. Understanding the interaction between risk factors and underlying pathological diagnosis is key to preventing misdiagnosis in such cases. Although not eliminating the need for a sound focused history and examination, spiral CT scanning allows rapid diagnosis of most causes. However, management of the diagnosed acute abdomen in medical patients can be extremely difficult, and there is no substitute for an experienced physician working together with a thoughtful surgeon supported by anaesthetists and intensivists. The key question is often ‘Does this patient need an operation?’, a decision which depends on many factors. It may be necessary to proceed straight to surgery without any supportive imaging in very sick patients who may be bleeding or who are profoundly septic.

scholarly journals Successful Treatment of Bronchial Dehiscence With Endobronchial Stent in Lung Transplantation

2000 ◽  
Vol 6 (4) ◽  
pp. 183-188 ◽  
Author(s):  
G. M. Ferraroli ◽  
M. Ravini ◽  
M. Torre ◽  
L. Valvassori ◽  
P. A. Belloni
Keyword(s):  
Lung Transplantation ◽  
Successful Treatment ◽  
Present Report ◽  
Spiral Ct ◽  
Bronchial Tree ◽  
Ct Reconstruction ◽  
Airway Stenosis ◽  
Bronchial Anastomosis ◽  
The Right ◽  
Made In

Bronchial dehiscence in lung transplantation is still a significant and threatening cause of morbidity, even if several progresses have been made in this field. In the present report we discuss a case of incomplete dehiscence of the right bronchial anastomosis in a patient who underwent sequential double lung transplantation for bronchiectasis. This complication has been successfully treated with endobronchial stent positioning, with the aim to allow the healing of the anastomosis around a rigid endobronchial support and to prevent the airway stenosis. The usefulness of 3D spiral CT reconstruction of bronchial tree is also underlined, for its capacity to detect the dehiscence and to monitor the healing of this complication.

Computerized Modeling Based on Spiral CT Data for Noninvasive Determination of Aortic Stent-Graft Length

2002 ◽  
Vol 9 (4) ◽  
pp. 520-528 ◽  
Author(s):  
Albert Rott ◽  
Thomas Boehm ◽  
Joachim Söldner ◽  
Jürgen R. Reichenbach ◽  
Jürgen Heyne ◽  
...  
Keyword(s):  
Stent Graft ◽  
Spiral Ct ◽  
Ct Images ◽  
Slice Thickness ◽  
Ct Reconstruction ◽  
Stent Grafts ◽  
Estimation Errors ◽  
Length Estimation ◽  
Endovascular Prosthesis ◽  
Clinical Conditions

Purpose: To preprocedurally determine the correct length of a nonbifurcated endovascular prosthesis for abdominal aortic aneurysm (AAA) repair using a computerized model. Methods: A computer program was implemented to calculate the optimal intraluminal course of nonbifurcated stent-grafts from spiral computed tomographic (CT) images of the aortic lumen reconstructed at 2.5, 5, and 10-mm slice thicknesses. The algorithm was tested using 10 phantoms fabricated from 150-mm-long, 10-mm-diameter copper rods that were bent into shapes mimicking different aortic configurations. Midpoint coordinates and rod diameters were determined from each CT image by 3 independent observers and served as input parameters to the program. The influence of the different CT reconstructions on the calculated lengths and possible observer dependence were assessed using calculated length estimation errors. Spiral CT images from 20 consecutive AAA patients scanned before stent-graft implantation were also processed to evaluate the algorithm under clinical conditions. Results: Length estimation errors of the phantoms depended on the degree of bending as well as on the CT reconstruction slice thickness but were observer independent. Maximum errors were 7% for the 10-mm slices, 3.5% for the 5-mm slices, and 1.2% for a 2.5-mm reconstruction. The mean longitudinal shortening of the aorta due to vessel tortuosity was 9.1% ± 4.8% among the 20 patients. Based on the results of the phantom study, errors of the calculated stent-graft lengths in patients were estimated to be ∼1% for a 5-mm CT reconstruction increment and <2% for a 10-mm increment. Conclusions: The proposed algorithm makes it possible to calculate noninvasively the correct length of straight stent-grafts under clinical conditions with a 1% to 2% error.

scholarly journals Reconstruction Algorithm-Based Ultrasonic and Spiral CT Images in Evaluating the Effects of Dexmedetomidine Anesthesia for Acute Abdomen

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Pinghua Tian ◽  
Shuhong Zhang ◽  
Linling Guo
Keyword(s):  
Image Reconstruction ◽  
Acute Abdomen ◽  
Reconstruction Algorithm ◽  
Spiral Ct ◽  
Ct Images ◽  
Projection Algorithm ◽  
Control Group ◽  
Anesthetic Drugs ◽  
Time Period ◽  
Experimental Group

Objective. The study focused on the application value of iteration reconstruction algorithm-based ultrasound and spiral computed tomography (CT) examinations, and the safety of dexmedetomidine anesthesia in acute abdominal surgery. Methods. 80 cases having the acute abdomen surgery were selected as the research subjects. They were divided into group A (40 cases) and group B (40 cases) according to the anesthetic drugs used in the later period. The experimental group was injected with propofol, remifentanil, and atracurium combined with dexmedetomidine; the control group was injected with propofol, remifentanil, and atracurium only. After the operation, the patient was for observed for the pain, agitation, adverse reactions, heart rate (HR), and blood pressure. All patients received ultrasound and spiral CT examinations, and based on the characteristics of the back-projection algorithm, an accelerated algorithm was established and used to process the image, and according to which, the patient’s condition and curative effects were evaluated. Results. After image reconstruction, the ultrasound and spiral CT images were clearer with less noise and more prominent lesions than before reconstruction. Before image reconstruction, the accuracy rates of ultrasound and spiral CT in diagnosing acute abdomen were 92.3% and 91.1%, respectively. After reconstruction, the corresponding numbers were 96.3% and 98.1%, respectively. After reconstruction, the accuracy of the two methods in diagnosing acute abdomen was significantly improved compared with that before reconstruction, and the difference was statistically significant ( P < 0.05 ). The Ramsay score of the experimental group was significantly higher than that of the control group at each time period, P < 0.05 ; the agitation score and visual analogue scale (VAS) score of the experimental group were significantly lower than the control group at each time period after waking up, P < 0.05 . Conclusion. Reconstruction algorithm-based ultrasound and spiral CT images have high application value in the diagnosis of patients with acute abdomen, and dexmedetomidine has good safety in anesthesia surgery.

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