Right Main Bronchus.

by Janice Cook-Granroth and Dr. McLennan

Patient History for Tracheal Stenosis

The patient presented to another institution with an acute respiratory illness three years previously requiring intubation and ventilation. The right main bronchus was noted to have severe bronchomalasia bronchoscopy, making weaning from the ventilatory difficult. A stainless steel stent was placed in the right main bronchus. Now three years later, she was sent to the University of Iowa with massive hemoprysis. The stent is migrating proximally with significant granulations in the xxxx trachea. Both the stent and the granulations have been partially removed using Nd:Yag laser. The patient remains well, but has surveillance bronchoscopies now every 6 months.

MPEG Movies of the Tracheal Stenosis

from 05/04/99.

from 10/11/00.

from 10/13/00.

from 08/20/01.

Original CT scan

The original trans axial section EBCT data set. The 123 images are 3 mm thick with 1.5mm overlap. Scan date 05/04/99.

The original trans axial section helical data set. The 333 images are 1 mm thick with 0.5mm overlap. Scan date 10/11/00.

The original trans axial section helical data set. The 272 images are 1 mm thick with 0.5mm overlap. Scan date 10/13/00.

The original trans axial section helical data set. The 252 images are 1 mm thick with 0.5mm overlap. Scan date 08/20/01.

The original trans axial section helical data set. The 97 images are 3mm thick slices. Scan date 10/29/02.

Surface render

Movies from 05/04/99 scan:

The airway and the stent.

The airway without the stent.

Movies from 10/11/00 scan:

The airway and the stent.

The airway without the stent.

Movies from 10/13/00 scan:

The airway and the stent.

The airway without the stent.

Movies from 08/20/01 scan:

The airway with the stent.

The airway without the stent.

Movie from 10/29/02 scan:

The airway .

Volume rendered

Movie of the airway and ribs.

Bronchoscopy

View of the trachea and right main bronchus from the Oct. 2002 scan.

Measurements

Right Main Bronchus from 10/11/00

Tube Geometry Analysis Summary
Date            : Fri Nov  3 17:58:00 2000
Oblique slices  : 15
Segmented image : 101100.seg_int
Original image  : 101100.seg_int

Slice Area [mm^2] AP [mm] Lat [mm]               Position   Major   Minor  Orthogonal
    1      44.396   9.240    6.776  (213.95,307.15,140.04)   9.933   4.132       4.132 
    2      42.879   7.392    7.392  (213.67,304.60,145.59)   8.008   4.312       8.008 
    3      46.294   7.392    8.008  (211.46,301.78,150.53)  10.028   4.356       7.023 
    4      28.839   6.160    5.544  (207.23,300.87,154.83)   6.342   4.691       5.510 
    5      26.941   4.312    6.776  (203.90,303.45,158.88)   7.443   4.312       4.691 
    6      39.084   7.392    7.392  (200.36,302.83,163.49)   7.889   4.811       4.811 
    7      19.732   4.928    5.544  (196.87,302.47,168.04)   5.811   3.080       3.080 
    8      29.977   7.392    4.928  (193.29,304.44,172.07)   8.265   3.592       3.592 
    9      30.736   6.160    5.544  (190.31,302.82,176.66)   6.548   4.691       4.811 
   10      23.906   4.928    4.312  (186.65,303.44,181.00)   6.098   4.356       5.227 
   11      15.558   3.696    4.312  (183.64,306.33,184.88)   4.966   2.540       3.592 
   12      18.973   4.312    4.928  (179.57,307.30,188.75)   5.299   3.592       4.356 
   13      18.214   3.696    5.544  (175.58,305.05,192.29)   6.663   2.540       3.080 
   14      22.767   6.160    4.928  (174.25,302.95,197.53)   6.282   3.592       4.356 
   15      29.598   6.160    5.544  (169.10,304.46,200.45)   7.023   4.811       6.160 

Right Main Bronchus from 10/13/00

Tube Geometry Analysis Summary
Date            : Fri Nov 10 17:20:26 2000
Oblique slices  : 15
Segmented image : 101300.272_int
Original image  : 101300.272_int

Slice Area [mm^2] AP [mm] Lat [mm]               Position   Major   Minor  Orthogonal
    1      21.596   5.950    4.760  (206.41,291.58,104.85)   6.212   3.034       5.084 
    2      42.837   7.735    7.735  (200.84,290.98,107.10)   7.826   6.126       7.238 
    3      46.731   7.140    8.330  (197.61,289.95,110.21)   9.294   5.322       6.325 
    4      44.961   7.735    7.735  (194.60,289.55,113.66)   8.457   5.645       6.939 
    5      39.297   7.140    6.545  (191.49,289.11,117.09)   7.573   5.322       6.325 
    6      31.862   6.545    7.140  (188.65,290.24,120.61)   7.620   4.531       5.118 
    7      35.403   7.140    7.140  (185.56,291.61,123.76)   7.620   4.797       5.486 
    8      44.607   6.545    7.140  (183.26,293.67,127.19)   7.758   6.212       6.939 
    9      38.943   6.545    5.950  (181.36,293.27,131.47)   7.573   5.613       6.325 
   10      32.924   7.140    5.950  (179.76,292.28,135.76)   8.093   4.332       5.049 
   11      20.179   4.760    4.760  (176.34,294.05,138.50)   5.118   3.810       4.797 
   12      22.304   5.355    4.760  (173.22,294.87,141.94)   5.645   3.991       3.991 
   13      29.030   6.545    5.355  (170.18,295.01,145.25)   6.572   4.647       4.906 
   14      26.198   5.950    4.760  (166.70,295.07,148.09)   6.212   4.332       4.332 
   15      19.471   4.760    5.355  (163.85,293.63,151.53)   6.126   3.204       3.204 

Right Main Bronchus from 08/20/01

Tube Geometry Analysis Summary
Date            : Tue Aug 28 19:37:35 2001
Oblique slices  : 7
Segmented image : airseg2_int
Original image  : airseg2_int
Note            : RMB

Slice Area [mm^2] AP [mm] Lat [mm]               Position   Major   Minor  Ortho
gonal
    1      24.634   4.865    6.950  (213.41,274.70, 84.80)   6.950   3.475      
 3.475 
    2      23.668   4.865    6.255  (207.96,274.94, 90.93)   6.593   3.544      
 5.293 
    3      23.668   4.865    5.560  (204.32,274.98, 98.35)   6.557   4.053      
 3.743 
    4      15.940   4.865    4.170  (198.94,274.30,104.59)   5.428   2.506      
 2.949 
    5      14.491   4.865    3.475  (195.85,276.12,112.00)   4.914   2.780      
 2.866 
    6      10.627   3.475    2.780  (191.79,277.71,118.99)   3.544   2.198      
 2.866 
    7       8.694   3.475    2.780  (186.27,279.38,124.94)   3.475   2.198      
 2.866