Radiographic Staging of Colorectal Cancer

2019 ◽  
Author(s):  
Maurits P. Engbersen ◽  
Max J. Lahaye ◽  
Regina G.H. Beets-Tan
Keyword(s):  
Magnetic Resonance Imaging ◽  
Colorectal Cancer ◽  
Computed Tomography ◽  
Rectal Cancer ◽  
Magnetic Resonance ◽  
Tumor Staging ◽  
Tnm Staging ◽  
Preoperative Imaging ◽  
Resonance Imaging ◽  
Colon And Rectal Cancer

Imaging increasingly plays an important role in selecting the most optimal treatment for patients with colon and rectal cancer. While in colon cancer, computed tomography (CT) remains the modality of choice for local and distant staging, in patients with rectal cancer magnetic resonance imaging (MRI) is the main modality and mandatory for local staging. Endoluminal rectal ultrasound (ERUS) is the preferred staging method for superficial rectal tumors. This chapter addresses the current role of various imaging modalities in colorectal tumor staging. This review contains 4 figures and 50 references. Key words: Preoperative imaging, Colorectal cancer, Magnetic resonance imaging, Diffusion weighted MRI, Computed tomography, Mesorectal fascia, TNM staging, Treatment stratification

Radiographic Staging of Colorectal Cancer

2019 ◽  
Author(s):  
Maurits P. Engbersen ◽  
Max J. Lahaye ◽  
Regina G.H. Beets-Tan
Keyword(s):  
Magnetic Resonance Imaging ◽  
Colorectal Cancer ◽  
Computed Tomography ◽  
Rectal Cancer ◽  
Magnetic Resonance ◽  
Tumor Staging ◽  
Tnm Staging ◽  
Preoperative Imaging ◽  
Resonance Imaging ◽  
Colon And Rectal Cancer

Imaging increasingly plays an important role in selecting the most optimal treatment for patients with colon and rectal cancer. While in colon cancer, computed tomography (CT) remains the modality of choice for local and distant staging, in patients with rectal cancer magnetic resonance imaging (MRI) is the main modality and mandatory for local staging. Endoluminal rectal ultrasound (ERUS) is the preferred staging method for superficial rectal tumors. This chapter addresses the current role of various imaging modalities in colorectal tumor staging. This review contains 4 figures and 50 references. Key words: Preoperative imaging, Colorectal cancer, Magnetic resonance imaging, Diffusion weighted MRI, Computed tomography, Mesorectal fascia, TNM staging, Treatment stratification

scholarly journals Diagnostic value of four-dimensional computed tomography and four-dimensional magnetic resonance imaging in primary hyperparathyroidism when first-line imaging was inadequate

2020 ◽  
Vol 102 (4) ◽  
pp. 294-299
Author(s):  
N Acar ◽  
M Haciyanli ◽  
M Coskun ◽  
NK Erdogan ◽  
SC Celik ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Primary Hyperparathyroidism ◽  
Dynamic Imaging ◽  
Successful Outcome ◽  
Preoperative Imaging ◽  
Resonance Imaging ◽  
First Line ◽  
Line Imaging

Introduction Accurate localisation of the abnormal hyperfunctioning gland with preoperative imaging has a critical role in parathyroid surgery to obtain a successful outcome. This study aimed to evaluate the diagnostic performance of second-line imaging and their contribution to the treatment success in primary hyperparathyroidism when the first-line methods were negative or discordant. Methods Among the patients who underwent parathyroidectomy due to primary hyperparathyroidism, 33 who underwent four-dimensional computed tomography and/or four-dimensional magnetic resonance imaging because of negative or discordant first-line imaging results were included. Persistent and recurrent cases were excluded. Results The majority of the patients were female (84.8%) and the mean age was 59.2 years. Seventeen patients had four-dimensional computed tomography and 25 had four-dimensional magnetic resonance imaging, respectively. Four-dimensional computed tomography and four-dimensional magnetic resonance imaging localised the culprit gland successfully in 52.9% and 84%, respectively. Twenty-five patients in whom single adenoma was detected underwent focused parathyroidectomy. The culprit gland was solitary in 32 cases and one patient had double adenoma. Normocalcaemia was achieved in all cases. Among the 29 patients who completed their postoperative sixth month success rate was 100%. Conclusion Four-dimensional magnetic resonance imaging had high accuracy with fast dynamic imaging in detecting parathyroid adenomas. When the first-line imaging methods were negative or inconclusive, four-dimensional magnetic resonance imaging should be considered primarily since it is cost effective in Turkey and emits no radiation.

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