Robotic Resection of Giant Duodenal Hamartoma After 18Fluorodeoxyglucose Positron Emission Tomography Magnetic Resonance Imaging (18FDG PET-MRI)

2021 ◽  
pp. 000313482199507
Author(s):  
Emanuele Damiano Luca Urso ◽  
Filippo Crimì ◽  
Giorgio Rivella ◽  
Francesco Celotto ◽  
Pietro Zucchetta ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Ct Scan ◽  
Fdg Pet ◽  
Preoperative Staging ◽  
Malignant Potential ◽  
Clinical Staging ◽  
Pathological Examination ◽  
Resonance Imaging ◽  
Duodenal Lesion

Brunner’s gland hamartoma is a rare duodenal lesion. Resection for benign neoplasms of the duodenum should be considered in case of malignant potential or in case of symptomatic lesions. An accurate preoperative staging is mandatory in order to allow minimally invasive surgical approach, and to avoid under- or overtreatment. Endoscopic ultrasonography (EUS), Computed tomography (CT) scan, Magnetic Resonance Imaging (MRI) and PET/CT are techniques widely used for gastrointestinal tumor staging. We report a case of a 41-year-old female presenting a giant lesion of the second portion of the duodenum. Pathological examination of multiple forceps biopsies was inconclusive for histological characterization of the lesion. After a clinical staging including Esophagusgastroduodenoscopy, EUS, and CT scan, a Hybrid 18FDG PET/MRI was performed to assess the malignant potential of the lesion and the relation between polyp base and Vater’s papilla. After multidisciplinary meeting, the patient underwent robotic transduodenal excision. The post-operative course was uneventful, and the patient was discharged on post-operative day 5. Final pathologic report consists in a histologically of Brunner’s Glands Hamartoma. This is the first report on the role of 18FDG PET/MRI in staging and planning treatment of bulky low malignant duodenal lesion. An accurate staging with 18FDG PET/MRI could be very useful in the planning the management of duodenal lesion with uncertain malignant potential in order to avoid under- and overtreatment.

Clinical significance of diffusion-weighted whole body magnetic resonance imaging with background body signal suppression (DWIBS) as a staging procedure for lymphoma patients in comparison with FDG-PET

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 8084-8084
Author(s):  
T. Itoyama ◽  
T. Shibuya ◽  
T. Koga ◽  
M. Kitagawa ◽  
T. Yoshida ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Clinical Significance ◽  
Fdg Pet ◽  
Clinical Staging ◽  
Whole Body ◽  
Resonance Imaging ◽  
Diffusion Weighted ◽  
Signal Suppression ◽  
Body Magnetic Resonance Imaging

8084 Background: FDG-PET is thought to be an important staging tool in lymphomas. However, high cost and exposure to radioactive agents are of disadvantage. Diffusion weighted whole body magnetic resonance imaging with background body signal suppression (DWIBS) is recently reported to be a new way of magnetic resonance imaging which can make FDG-PET-like imaging possible to detect tumors (Takahara et al; Radiation Medicine 22: 275–282, 2004). This study is aimed to compare accuracy and clinical significance of DWIBS to FDG - PET. Methods: We examined 19 lymphoma (Ly) patients (pts) by using both DWIBS and FDG -PET at the time of diagnosis before therapy. There were follicular Ly in 3 pts, nodal marginal zone Ly in 1, diffuse large B-cell Ly in 9 including primary stomach Ly in 2, peripheral T -cell Ly in 4, and MALT Ly of stomach (GI-MALT) in 2. DWIBS was performed with a 1.5 -Tesla system as previously reported (Ochiai et al; Nichidoku -Iho 50: 86–98, 2005). Clinical staging was made according to the Ann Arbor classification. Results: Both DWIBS and FDG -PET had positive findings in 18 of 19 pts except for a case of GI -MALT. In nodal lesions, DWIBS was positive in 16 pts at 66 sites compared to 16 pts at 68 sites with FDG -PET. DWIBS was negative in 3 pts at 5 sites in spleen, hilar and mediastinal lymphnodes where positive in FDG -PET. DWIBS was positive in 2 pts at 4 sites in iliac and inguinal lymphnodes that are negative in FDG -PET. In extranodal lesions, DWIBS was positive in 12 pts at 17 sites as compared to 12 pts at 18 sites with FDG -PET. Involvement of bone and stomach were equally identified at 8 sites. DWIBS was negative in 2 pts at 2 sites in liver and pleura with FDG -PET positive. Small skin lesions were clearly identified on DWIBS. Discordance of clinical staging was not observed between DWIBS and FDG -PET. Conclusions: Although some discrepancy was seen between DWIBS and FDG -PET, there was no disadvantage of DWIBS compared to FDG -PET. Furthermore, DWIBS has no risk of radiation exposure and is even advantageous to detect lesions with FDG -PET negative. We conclude DWIBS is a new useful tool to assess tumor spread in lymphomas. No significant financial relationships to disclose.

Diagnostic Accuracy of Magnetic Resonance Imaging and Computed Tomography Scan in Young Athletes With Spondylolysis

2019 ◽  
Vol 58 (6) ◽  
pp. 671-676
Author(s):  
Amy M. West ◽  
Pierre A. d’Hemecourt ◽  
Olivia J. Bono ◽  
Lyle J. Micheli ◽  
Dai Sugimoto
Keyword(s):  
Magnetic Resonance Imaging ◽  
Computed Tomography ◽  
Magnetic Resonance ◽  
Ct Scan ◽  
False Negative ◽  
False Negative Rate ◽  
Ct Scans ◽  
Resonance Imaging ◽  
Young Athletes ◽  
Negative Rate

The objective of this study was to determine diagnostic accuracy of magnetic resonance imaging (MRI) and computed tomography (CT) scans in young athletes diagnosed with spondylolysis. A cross-sectional study was used. Twenty-two young athletes (14.7 ± 1.5 years) were diagnosed as spondylolysis based on a single-photon emission CT. Following the diagnosis, participants underwent MRI and CT scan imaging tests on the same day. The sensitivity and false-negative rate of the MRI and CT scans were analyzed. MRI test confirmed 13 (+) and 9 (−) results while CT test showed 17 (+) and 5 (−) results. The sensitivity and false-negative rate of MRI were, respectively, 59.1% (95% confidence interval [CI] = 36.7% to 78.5%) and 40.9% (95% CI = 21.5% to 63.3%). Furthermore, the sensitivity and false-negative rate of CT scan were 77.3% (95% CI = 54.2% to 91.3%) and 22.7% (95% CI = 0.09% to 45.8%). Our results indicated that CT scan is a more accurate imaging modality to diagnose spondylolysis compared with MRI in young athletes.

scholarly journals Laparoscopic resection of two peritoneal loose bodies on the rectosigmoid colon

2018 ◽  
Vol 7 (2) ◽  
pp. 736
Author(s):  
Ken-ichi Honda ◽  
Tomoko Nakagawa ◽  
Yasushi Kurihara ◽  
Koji Kajitani ◽  
Tetsuji Ando ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Laparoscopic Resection ◽  
Preoperative Magnetic Resonance Imaging ◽  
Pathological Examination ◽  
Resonance Imaging ◽  
Loose Bodies ◽  
Rectosigmoid Colon ◽  
Preoperative Magnetic Resonance

Laparoscopic examination of a 77-year-old woman revealed two peritoneal loose bodies connected to fatty appendices on the rectosigmoid colon and resected at the stalks. The peritoneal loose bodies were found to be fat-containing masses on preoperative magnetic resonance imaging, and postoperative pathological examination revealed fat degeneration tissue with or without fibrous outer layers.

scholarly journals Anterior cruciate ligament ganglion: case report

2002 ◽  
Vol 120 (6) ◽  
pp. 195-197 ◽  
Author(s):  
André Pedrinelli ◽  
Fábio Bonini Castellana ◽  
Ricardo Bragança de Vasconcellos Fontes ◽  
Rafael Ferreira Coelho ◽  
Luiz Álvaro de Menezes F°.
Keyword(s):  
Magnetic Resonance Imaging ◽  
Anterior Cruciate Ligament ◽  
Case Report ◽  
Magnetic Resonance ◽  
Cruciate Ligament ◽  
Clinical Signs ◽  
Left Knee ◽  
Pathological Examination ◽  
Resonance Imaging ◽  
Anterior Cruciate

CONTEXT: A ganglion is a cystic formation close to joints or tendinous sheaths, frequently found in the wrist, foot or knee. Intra-articular ganglia of the knee are rare, and most of them are located in the anterior cruciate ligament. The clinical picture for these ganglia comprises pain and movement restrictions in the knee, causing significant impairment to the patient. Symptoms are non-specific, and anterior cruciate ligament ganglia are usually diagnosed through magnetic resonance imaging or arthroscopy. Not all ganglia diagnosed through magnetic resonance imaging need to undergo surgical treatment: only those that cause clinical signs and symptoms do. Surgical results are considered good or excellent in the vast majority of cases. CASE REPORT: A 29-year-old male presented with pain in the left knee during a marathon race. Physical examination revealed limitation in the maximum range of knee extension and pain in the posterior aspect of the left knee. Radiographs of the left knee were normal, but magnetic resonance imaging revealed a multi-lobed cystic structure adjacent to the anterior cruciate ligament, which resembled a ganglion cyst. The mass was removed through arthroscopy, and pathological examination revealed a synovial cyst. Patient recovery was excellent, and he resumed his usual training routine five months later.

scholarly journals Agreement Between Computed Tomography And Magnetic Resonance Imaging In Measuring Optic Nerve Sheath Diameter

2018 ◽  
Vol 10 (3) ◽  
pp. 22
Author(s):  
Haider N. Al-Tameemi ◽  
Neda M. Helel
Keyword(s):  
Magnetic Resonance Imaging ◽  
Optic Nerve ◽  
Magnetic Resonance ◽  
Ct Scan ◽  
Optic Nerve Sheath Diameter ◽  
Resonance Imaging ◽  
Perfect Agreement ◽  
Nerve Sheath ◽  
The Brain ◽  
Ct And Mri

BACKGROUND: Neuroimaging is increasingly used as a non-invasive method to assess raised intracranial pressure (ICP). Optic nerve sheath diameter (ONSD) measurement using brain magnetic resonance imaging (MRI) has been shown to correlate well with invasively measured ICP, however little research has been conducted on the ONSD measurement using computerized tomography (CT) in correlation with ICP. This study was done to investigate whether CT scan can reliably replace MRI in measuring ONSD.METHOD: A cross-sectional comparative study was conducted on 50 adult patients (29 females and 21 males), who underwent both CT and MRI of the brain along 10-month period. Using the brain axial section, the transverse ONSD was measured at 3 mm behind the globe in both modalities. Agreement between CT and MRI readings was assessed using intraclass correlation (ICC) and Kappa method.RESULTS: There was a strongly positive and statistically significant correlation between ONSD measurement using CT scan and MRI (p value <0.001). There was almost perfect agreement between CT scan and MRI in measuring ONSD (ICC=0.987 and Kappa =0.837). Similar agreement was obtained when cases stratified into normal (≤ 5mm) and thickened (> 5mm) ONSD (ICC=0.947 and 0.972 respectively).CONCLUSION: CT scan is a reliable substitute for MRI in measuring ONSD with almost perfect agreement between the two modalities. It might be good practice to include ONSD measurement in the initial evaluation of brain CT scan in any patient with suspected raised ICP.

scholarly journals Magnetic resonance imaging and dynamic CT scan in cervical artery dissections.

Stroke ◽  
1994 ◽  
Vol 25 (3) ◽  
pp. 576-581 ◽  
Author(s):  
M Zuber ◽  
E Meary ◽  
J F Meder ◽  
J L Mas
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Ct Scan ◽  
Dynamic Ct ◽  
Resonance Imaging ◽  
Cervical Artery

scholarly journals Magnetic resonance imaging as a supplement for the clinical staging system of Durie and Salmon?

Cancer ◽  
2002 ◽  
Vol 95 (6) ◽  
pp. 1334-1345 ◽  
Author(s):  
Andrea Baur ◽  
Axel Stäbler ◽  
Dorothea Nagel ◽  
Rolf Lamerz ◽  
Reiner Bartl ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Staging System ◽  
Clinical Staging ◽  
Resonance Imaging ◽  
Clinical Staging System
Sign in / Sign up

Export Citation Format

Share Document